bcdedit.exe

Associated Error Codes

Below lists error codes and symbolic names found for this module.

Code	Found in	Description
0x1001000	1011	Unknown entry type (%1!08x!) -----------------------------
0x1001001	1011	Firmware Boot Manager ---------------------
0x1001002	1011	Windows Boot Manager --------------------
0x1001003	1011	Windows Boot Loader -------------------
0x1001004	1011	Resume from Hibernate ---------------------
0x1001005	1011	Windows Memory Tester ---------------------
0x1001006	1011	Windows Legacy OS Loader ------------------------
0x1001007	1011	Windows Legacy Setup Loader ---------------------------
0x1001008	1011	Real-mode Boot Sector ---------------------
0x1001009	1011	Windows Setup -------------
0x100100a	1011	OS Target Template ------------------
0x100100b	1011	Setup Ramdisk Options ---------------------
0x100100c	1011	Windows Boot Application (%1!08x!) -----------------------------------
0x100100d	1011	Firmware Application (%1!08x!) -------------------------------
0x100100e	1011	Legacy Loader Application (%1!08x!) ------------------------------------
0x100100f	1011	Real-mode Application (%1!08x!) --------------------------------
0x1001020	1011	EMS Settings ------------
0x1001021	1011	Debugger Settings -----------------
0x1001022	1011	Inherited Settings (%1!08x!) -----------------------------
0x1001023	1011	Device options --------------
0x1001024	1011	identifier %1
0x1001025	1011	RAM Defects -----------
0x1001026	1011	Global Settings ---------------
0x1001027	1011	Boot Loader Settings --------------------
0x1001028	1011	Resume Loader Settings ----------------------
0x1001029	1011	Hypervisor Settings -------------------
0x1001030	1011	- secondary plex
0x1001031	1011	Kernel Debugger Settings ------------------------
0x1001032	1011	store path: %1
0x1002001	1011	%1!-24s!%2
0x1002002	1011	%1!-24s!%2!I64u!
0x1002003	1011	%1!-24s!0x%2!I64x!
0x1007001	1011	The entry was successfully copied to %1.
0x1007002	1011	The entry %1 was successfully created.
0x1007003	1011	The entry was successfully mirrored to %1.
0x4100803b	1011	There are no matching objects or the store is empty.
0xc1008001	1011	The specified store parameter is not valid. Run bcdedit /? for command line assistance.
0xc1008002	1011	The verbose command line parameter is not valid. Run "bcdedit /?" for command line assistance.
0xc1008003	1011	The specified entry type is invalid. Run "bcdedit /?" for command line assistance.
0xc1008004	1011	The specified format option is invalid. Run "bcdedit /?" for command line assistance.
0xc1008005	1011	The boot configuration data store could not be opened.
0xc1008006	1011	There was an error enumerating the boot configuration data entries.
0xc1008007	1011	The copy command specified is not valid. Run "bcdedit /?" for command line assistance.
0xc1008008	1011	A description for the new entry must be specified. Run "bcdedit /?" for command line assistance.
0xc1008009	1011	The specified entry identifier is not valid.
0xc100800a	1011	An error occurred while attempting the specified copy operation.
0xc100800b	1011	An error occurred while attempting to set the entry description.
0xc100800c	1011	An error occurred while attempting to obtain the target entry's identifier.
0xc100800d	1011	The delete command specified is not valid. Run "bcdedit /?" for command line assistance.
0xc100800e	1011	An error occurred while attempting to reference the specified entry.
0xc100800f	1011	This entry cannot be deleted unless the /f switch is specified on the command line. Run bcdedit /? for more information.
0xc1008010	1011	An error occurred while attempting to delete the specified entry.
0xc1008011	1011	The create command specified is not valid. Run "bcdedit /?" for command line assistance.
0xc1008012	1011	You may not use the current boot entry ID for this operation. Run "bcdedit /?" for command line assistance.
0xc1008013	1011	This command line is invalid for a well-known identifier. Run "bcdedit /?" for command line assistance.
0xc1008014	1011	The application type switch specified is not valid. Run "bcdedit /?" for command line assistance.
0xc1008015	1011	The inherited entry type specified is not valid. Run "bcdedit /?" for command line assistance.
0xc1008016	1011	The device entry type specified is not valid. Run "bcdedit /?" for command line assistance.
0xc1008017	1011	An error occurred while attempting the specified create operation.
0xc1008018	1011	An error occurred while attempting to delete the specified data element.
0xc1008019	1011	The set command specified is not valid. Run "bcdedit /?" for command line assistance.
0xc100801a	1011	The element data type specified is not recognized, or does not apply to the specified entry. Run "bcdedit /?" for command line assistance.
0xc100801b	1011	The device is not valid as specified. Run "bcdedit /?" for command line assistance.
0xc100801c	1011	The entry data is not valid as specified. Run "bcdedit /?" for command line assistance.
0xc100801d	1011	The entry list data is not valid as specified. Run "bcdedit /?" for command line assistance.
0xc100801e	1011	The integer data is not valid as specified. Run "bcdedit /?" for command line assistance.
0xc100801f	1011	The boolean data is not valid as specified. Run "bcdedit /?" for command line assistance.
0xc1008020	1011	An error has occurred setting the element data.
0xc1008021	1011	The timeout value is not valid as specified. Run "bcdedit /?" for command line assistance.
0xc1008022	1011	The default entry is not valid as specified. Run "bcdedit /?" for command line assistance.
0xc1008023	1011	The debugger type specified is not valid. Run "bcdedit /?" for command line assistance.
0xc1008024	1011	The settings are not valid for the debugger type specified. Run "bcdedit /?" for command line assistance.
0xc1008025	1011	An error occurred while attempting to access the boot configuration data.
0xc1008026	1011	An error occurred while attempting to modify the debugger settings.
0xc1008027	1011	The parameters are not valid. Run "bcdedit /?" for command line assistance.
0xc1008028	1011	An error occurred while attempting to access the specified entry.
0xc1008029	1011	This command can only modify a Windows Boot Loader entry.
0xc100802a	1011	An unknown command was specified. Run "bcdedit /?" for command line assistance.
0xc100802b	1011	The specified EMS settings are not valid. Run "bcdedit /?" for command line assistance.
0xc100802c	1011	An error occurred while attempting to access the boot configuration data.
0xc100802d	1011	An error occurred while attempting to modify the EMS settings.
0xc100802e	1011	The specified data type is unknown or invalid. Run "bcdedit /?" for command line assistance.
0xc100802f	1011	The specified create store command is invalid. Run "bcdedit /?" for command line assistance.
0xc1008030	1011	The store creation operation has failed.
0xc1008031	1011	The store import command is invalid. Run "bcdedit /?" for command line assistance.
0xc1008032	1011	The store import operation has failed.
0xc1008033	1011	An invalid combination of switches has been specified. Run "bcdedit /?" for command line assistance.
0xc1008034	1011	An error has occurred reading the existing display order.
0xc1008035	1011	The specified command line is not valid. Run "bcdedit /?" for command line assistance.
0xc1008036	1011	The baud rate must be 9600, 19200, 38400, 57600, 115200, 230400 or higher. Run "bcdedit /?" for command line assistance.
0xc1008037	1011	Valid channel numbers are any integer between 0 and 62, inclusive. Run "bcdedit /?" for command line assistance.
0xc1008038	1011	The store export command is invalid. Run "bcdedit /?" for command line assistance.
0xc1008039	1011	The store export operation has failed.
0xc100803a	1011	Invalid command line switch: /%1 Run "bcdedit /?" for command line assistance.
0xc100803c	1011	An error has occurred attempting to modify the display order.
0xc100803d	1011	There are no debugger settings present.
0xc100803e	1011	An error occurred while attempting the specified create operation. The specified entry already exists.
0xc100803f	1011	An error occurred while attempting to modify the hypervisor settings.
0xc1008040	1011	An error occurred while attempting to access the boot configuration data.
0xc1008041	1011	There are no hypervisor settings present.
0xc1008042	1011	The set system store device command is invalid. Run "bcdedit /?" for command line assistance.
0xc1008043	1011	The set system store device command has failed.
0xc1008044	1011	An error occurred while attempting the specified mirror operation.
0xc1008045	1011	The mirror command specified is not valid. Run "bcdedit /?" for command line assistance.
0xc1008046	10	The port must be greater than 49151 and less than 65536. Run "bcdedit -dbgsettings /?" for command line assistance.
0xc1008047	1011	The key must be specified in base 36. Only digits 0-9 and letters a-z can be used when specifying the key. Each of the four 64 bit key chunks may be specified with up to 13 characters and must be separated by a period. None of the key chunks can be zero. 1.1.1.1, 1.2.3.4, theprevious.keys.arenot.secure, automatically.generated.keysare.safer4you are all examples of valid keys. Run "bcdedit -dbgsettings /?" for command line assistance.
0xc1008048	1011	Failed to open a cryptographic service provider. Automatic encryption key generation failed.
0xc1008049	1011	Failed to generate an encryption key.
0xc100804a	1011	Failed to convert the encryption key to a string.
0xc100804b	1011	This platform does not support the cryptographic functions required to automatically generate a key. Please specify the key directly on the command line. Run "bcdedit -dbgsettings /?" for command line assistance.
0xc100804c	1011	There are no kernel debugger settings present.
0xc100804d	1011	An error occurred while attempting to modify the kernel debugger settings.
0xc100804e	1011	An error occurred while attempting to access the boot configuration data.
0xc100804f	1011	The remote event logging parameters are not valid. Run "bcdedit /?" for command line assistance.
0xc1008050	1011	An error occurred while attempting to modify the remote event logging settings.
0xc1008051	1011	An error occurred while attempting to modify the remote event logging settings. The debugger settings must be disabled to enable the remote event logging settings.
0xc1008052	10	An error occurred while attempting to modify the debugger settings. The remote event logging settings must be disabled to enable the debugger settings.
0xc1008053	1011	1394 debugging is no longer supported. Please select another transport.
0xc100f001	10	BCDEDIT - Boot Configuration Data Store Editor The Bcdedit.exe command-line tool modifies the boot configuration data store. The boot configuration data store contains boot configuration parameters and controls how the operating system is booted. These parameters were previously in the Boot.ini file (in BIOS-based operating systems) or in the nonvolatile RAM entries (in Extensible Firmware Interface-based operating systems). You can use Bcdedit.exe to add, delete, edit, and append entries in the boot configuration data store. For detailed command and option information, type bcdedit.exe /? . For example, to display detailed information about the /createstore command, type: bcdedit.exe /? /createstore For an alphabetical list of topics in this help file, run "bcdedit /? TOPICS". Commands that operate on a store ================================ /store Used to specify a BCD store other than the current system default. /createstore Creates a new and empty boot configuration data store. /export Exports the contents of the system store to a file. This file can be used later to restore the state of the system store. /import Restores the state of the system store using a backup file created with the /export command. /sysstore Sets the system store device (only affects EFI systems, does not persist across reboots, and is only used in cases where the system store device is ambiguous). Commands that operate on entries in a store =========================================== /copy Makes copies of entries in the store. /create Creates new entries in the store. /delete Deletes entries from the store. /mirror Creates mirror of entries in the store. Run bcdedit /? ID for information about identifiers used by these commands. Commands that operate on entry options ====================================== /deletevalue Deletes entry options from the store. /set Sets entry option values in the store. Run bcdedit /? TYPES for a list of datatypes used by these commands. Run bcdedit /? FORMATS for a list of valid data formats. Commands that control output ============================ /enum Lists entries in the store. /v Command-line option that displays entry identifiers in full, rather than using names for well-known identifiers. Use /v by itself as a command to display entry identifiers in full for the ACTIVE type. Running "bcdedit" by itself is equivalent to running "bcdedit /enum ACTIVE". Commands that control the boot manager ====================================== /bootsequence Sets the one-time boot sequence for the boot manager. /default Sets the default entry that the boot manager will use. /displayorder Sets the order in which the boot manager displays the multiboot menu. /timeout Sets the boot manager time-out value. /toolsdisplayorder Sets the order in which the boot manager displays the tools menu. Commands that control Emergency Management Services for a boot application ========================================================================== /bootems Enables or disables Emergency Management Services for a boot application. /ems Enables or disables Emergency Management Services for an operating system entry. /emssettings Sets the global Emergency Management Services parameters. Command that control debugging ============================== /bootdebug Enables or disables boot debugging for a boot application. /dbgsettings Sets the global debugger parameters. /debug Enables or disables kernel debugging for an operating system entry. /hypervisorsettings Sets the hypervisor parameters. Command that control remote event logging ========================================= /eventsettings Sets the global remote event logging parameters. /event Enables or disables remote event logging for an operating system entry.
0xc100f002	1011	This command lists entries in a store. The /enum command is the default, so running "bcdedit" without parameters is equivalent to running "bcdedit /enum ACTIVE". bcdedit [/store ] /enum [ \| ] [/v] Specifies the store to be used. If this option is not specified, the system store is used. For more information, run "bcdedit /? store". Specifies the type of entries to be listed. can be one of the following: ACTIVE All entries in the boot manager display order. This is the default. FIRMWARE All firmware applications. BOOTAPP All boot environment applications. BOOTMGR The boot manager. OSLOADER All operating system entries. RESUME All resume from hibernation entries. INHERIT All inherit entries. ALL All entries. Specifies the identifier of the entry to be listed. If an identifier is provided, then only the specified object will be listed. For information about identifiers, run "bcdedit /? ID". /v Displays entry identifiers in full, rather than using names for well-known identifiers. Examples: The following command lists all operating system loader boot entries: bcdedit /enum OSLOADER The following command lists all boot manager entries: bcdedit /enum BOOTMGR The following command lists only the default boot entry: bcdedit /enum {default} The following command lists only the specified operating system boot entry: bcdedit /enum {b38a9fc1-5690-11da-b795-e9ad3c5e0e3a}
0xc100f003	1011	This command creates a new entry in the boot configuration data store. If a well-known identifier is specified, then the /application, /inherit and /device options cannot be specified. If the is not specified, or if is not well-known, then you must specify an /application, /inherit or /device option. bcdedit /create [{}] [/d ] [/application \| /inherit [] \| /inherit DEVICE \| /device] Specifies the identifier to be used for the new entry. For more information about identifiers, run "bcdedit /? ID". Specifies the description to be applied to the new entry. /application Specifies that the new entry must be an application entry. specifies the application type. can be one of the following: BOOTAPP BOOTSECTOR OSLOADER RESUME STARTUP If you use other application types instead of one of these, you must also specify a well-known identifier. /inherit [] Specifies that the new entry must be an inherit entry, and specifies the application type. If is not specified, then the entry can be inherited by any entry. If specified, can be one of the following: BOOTMGR BOOTSECTOR FWBOOTMGR MEMDIAG NTLDR OSLOADER RESUME The modifier prevents the inherit entry from being inherited by an application entry of . /inherit DEVICE Specifies that the new entry must be an inherit entry, and that the entry can only be inherited by a device options entry. /device Specifies that the new entry must be an additional device options entry. Examples: The following command creates a NTLDR based OS loader entry (Ntldr): bcdedit /create {ntldr} /d "Earlier Windows OS Loader" The following command creates a RAM disk additional options entry: bcdedit /create {ramdiskoptions} The following command creates a new operating system boot entry: bcdedit /create /d "Windows Vista" /application osloader The following command creates a new debugger settings entry: bcdedit /create {dbgsettings}
0xc100f004	1011	This command creates a copy of the specified boot entry. bcdedit [/store ] /copy {} /d Specifies the store to be used. If this option is not specified, the system store is used. For more information, run "bcdedit /? store". Specifies the identifier of the entry to be copied. For more information about identifiers, run "bcdedit /? ID". Specifies the description to be applied to the new entry. Example: The following command creates a copy of the specified operating system boot entry: bcdedit /copy {cbd971bf-b7b8-4885-951a-fa03044f5d71} /d "Copy of entry"
0xc100f005	1011	This command deletes an entry from the boot configuration data store. bcdedit [/store ] /delete [/f] [/cleanup \| /nocleanup] Specifies the store to be used. If this option is not specified, the system store is used. For more information, run "bcdedit /? store". Specifies the identifier of the boot entry that you want to delete. For more information about identifiers, run "bcdedit /? ID". /f Deletes the specified entry. Without this option, Bcdedit will not delete any entries that have a well-known identifier. /cleanup Deletes the specified entry and removes the entry from the display order. Any other references to the entry being deleted will also be removed from the store. When deleting an OS loader entry, the associated resume from hibernation entry is also deleted if it is not referenced by any other OS loaders. This option is assumed unless /nocleanup is specified. /nocleanup Deletes the specified entry without removing the entry from the display order. Examples: The following command deletes the specified operating system entry from the store and removes the entry from the display order: bcdedit /delete {cbd971bf-b7b8-4885-951a-fa03044f5d71} The following command deletes the specified operating system entry from the store and removes the entry from the display order: bcdedit /delete {cbd971bf-b7b8-4885-951a-fa03044f5d71} /cleanup The following command deletes the specified operating system entry from the store without removing the entry from the display order: bcdedit /delete {cbd971bf-b7b8-4885-951a-fa03044f5d71} /nocleanup The following command deletes the NTLDR based OS loader entry from the store: bcdedit /delete {ntldr} /f
0xc100f006	1011	This command sets an entry option value in the boot configuration data store. bcdedit [/store ] /set [{}] [ /addfirst \| /addlast \| /remove ] Specifies the store to be used. If this option is not specified, the system store is used. For more information, run "bcdedit /? store". Specifies the identifier of the entry to be modified. If not specified, {current} is used. For more information about identifiers, run "bcdedit /? ID". Specifies the option data type that will be created or modified. Run "bcdedit /? TYPES" for more information about data types. Specifies the value that should be assigned to the option. The format of depends on the data type specified. Run "bcdedit /? FORMATS" for more information about data formats. /addfirst This switch can only be used if datatype is an object list. Adds the specified entry identifier to the top of the list. If this switch is specified, only a single entry identifier may be specified. If the specified identifier is already in the list, it will be moved to the top of the list. /addlast This switch can only be used if datatype is an object list. Adds the specified entry identifier to the end of the list. If this switch is specified, only a single entry identifier may be specified. If the specified identifier is already in the list, it is moved to the end of the list. /remove This switch can only be used if datatype is an object list. Removes the specified entry identifier from the list. If this switch is specified, only a single entry identifier may be specified. If the identifier is not in the list then the operation has no effect. If the last entry is being removed, then the datatype value is deleted. Examples: The following command sets the application device to the partition C: for the specified operating system entry: bcdedit /set {cbd971bf-b7b8-4885-951a-fa03044f5d71} device partition=C: NOTE: Use 'hd_partition=' syntax to explicitly disable automatic VHD detection, and create entries that are compatible for booting a virtual machine, i.e., bcdedit /store F:\boot\bcd /set {default} device hd_partition=F: The following command sets the OS device to a VHD file (C:\vdisks\vdisk01.vhd) for the specified operating system entry: bcdedit /set {cbd971bf-b7b8-4885-951a-fa03044f5d71} osdevice vhd=[C:]\vdisks\disk01.vhd The following command sets the application path to \windows\system32\winload.exe for the specified operating system entry: bcdedit /set {cbd971bf-b7b8-4885-951a-fa03044f5d71} path \windows\system32\winload.exe The following command sets the NX policy to OptIn for the current operating system boot entry. bcdedit /set nx optin
0xc100f007	1011	This command deletes a data element from an entry in the boot configuration data store. bcdedit [/store ] /deletevalue [] Specifies the store to be used. If this option is not specified, the system store is used. For more information, run "bcdedit /? store". Specifies the identifier of the entry that will be modified. If not specified, {current} is used. For more information about identifiers, run "bcdedit /? ID". Specifies the option that will be removed from the specified entry. Run "bcdedit /? TYPES" for more information about data types. Examples: The following command deletes the bootsequence option from the boot manager entry: bcdedit /deletevalue {bootmgr} bootsequence The following command deletes the Windows Preinstallation Environment (WinPE) value from the current operating system boot entry: bcdedit /deletevalue winpe The following command deletes the Windows PE value from the specified operating system boot entry: bcdedit /deletevalue {cbd971bf-b7b8-4885-951a-fa03044f5d71} winpe
0xc100f008	1011	This command sets the time to wait, in seconds, before the boot manager selects a default entry. For information about setting the default entry, run "bcdedit /? default". bcdedit /timeout Specifies the time to wait, in seconds, before the boot manager selects a default entry. Example: The following command sets the boot manager to 30 seconds: bcdedit /timeout 30
0xc100f009	1011	This command sets the default entry that the boot manager will use when the timeout expires. bcdedit /default Specifies the identifier of the boot entry to be used as the default when the time-out expires. For information about identifiers, run "bcdedit /? ID". Examples: The following command sets the specified entry as the default boot manager entry: bcdedit /default {cbd971bf-b7b8-4885-951a-fa03044f5d71} The following command sets the NTLDR based OS loader as the default entry: bcdedit /default {ntldr}
0xc100f00a	1011	This command sets the display order to be used by the boot manager. bcdedit /displayorder [...] [ /addfirst \| /addlast \| /remove ] [...] Specifies a list of identifiers that make up the display order. At least one identifier must be specified and they must be separated by spaces. For more information about identifiers, run "bcdedit /? ID". /addfirst Adds the specified entry identifier to the top of the display order. If this switch is specified, only a single entry identifier may be specified. If the specified identifier is already in the list, it will be moved to the top of the list. /addlast Adds the specified entry identifier to the end of the display order. If this switch is specified, only a single entry identifier may be specified. If the specified identifier is already in the list, it is moved to the end of the list. /remove Removes the specified entry identifier from the display order. If this switch is specified, only a single entry identifier may be specified. If the identifier is not in the list then the operation has no effect. If the last entry is being removed, then the display order value is deleted from the boot manager entry. Examples: The following command sets two OS entries and the NTLDR based OS loader in the boot manager display order: bcdedit /displayorder {802d5e32-0784-11da-bd33-000476eba25f} {cbd971bf-b7b8-4885-951a-fa03044f5d71} {ntldr} The following command adds the specified OS entry to the end of the boot manager display order: bcdedit /displayorder {802d5e32-0784-11da-bd33-000476eba25f} /addlast
0xc100f00b	1011	This command sets the one-time boot sequence to be used by the boot manager. bcdedit /bootsequence [...] [ /addfirst \| /addlast \| /remove ] [...] Specifies a list of identifiers that make up the boot sequence. You must specify at least one identifier and must separate identifiers by spaces. For more information about identifiers, run "bcdedit /? ID". /addfirst Adds the specified entry identifier to the top of the boot sequence. If this switch is specified, only a single identifier may be specified. If the identifier is already in the list, it is moved to the top of the list. /addlast Adds the specified entry identifier to the end of the boot sequence. If this switch is specified, only a single identifier may be specified. If the identifier is already in the list, it is moved to the end of the list. /remove Removes the specified entry identifier from the boot sequence. If this switch is specified, only a single entry identifier may be specified. If the identifier is not in the list then the operation has no effect. If the last entry is being removed, then the boot sequence value is deleted from the boot manager entry. Examples: The following command sets two OS entries and the NTLDR based OS loader in the boot manager one-time boot sequence: bcdedit /bootsequence {802d5e32-0784-11da-bd33-000476eba25f} {cbd971bf-b7b8-4885-951a-fa03044f5d71} {ntldr} The following command adds the specified OS entry to the end of the boot manager one-time boot sequence: bcdedit /bootsequence {802d5e32-0784-11da-bd33-000476eba25f} /addlast
0xc100f00c	1011	This command sets or displays the global debugger settings for the system. This command does not enable or disable the debugger for any particular boot entry. To enable or disable the debugger for a particular boot entry, use "bcdedit /debug < identifier> ON". For information about identifiers, run "bcdedit /? ID". To set an individual global debugger setting, use "bcdedit /set {dbgsettings} ". For information about valid types, run "bcdedit /? TYPES". bcdedit /dbgsettings [ [DEBUGPORT:] [BAUDRATE:] [CHANNEL:] [TARGETNAME:] [HOSTIP:] [PORT:] [KEY:] [nodhcp] [newkey] [/start ] [/noumex] ] Specifies the type of debugger. can be one of SERIAL, 1394, USB, NET or LOCAL. For SERIAL debugging, specifies the serial port to use as the debugging port. This is an optional setting. For SERIAL debugging, specifies the baud rate to be used for debugging. This is an optional setting. For 1394 debugging, specifies the 1394 channel to be used for debugging. For universal serial bus (USB) debugging, specifies the USB target name to be used for debugging. For network debugging, specifies the IPv4 address of the host debugger. For network debugging, specifies the port to communicate with on the host debugger. Should be 49152 or higher. For network debugging, specifies the key with which to encrypt the connection. [0-9] and [a-z] allowed only. nodhcp For network debugging prevents use of DHCP to obtain the target IP address. newkey For network debugging specifies that a new encryption key should be generated for the connection. /start For all debugger types, this specifies the debugger start policy. can be one of the following: ACTIVE AUTOENABLE DISABLE. If not specified, ACTIVE is the default. /noumex If specified, this causes the kernel debugger to ignore any user-mode exceptions. Examples: The following command displays the current global debugger settings: bcdedit /dbgsettings The following command sets the global debugger settings to serial debugging over com1 at 115,200 baud: bcdedit /dbgsettings SERIAL DEBUGPORT:1 BAUDRATE:115200 The following command sets the global debugger settings to 1394 debugging using channel 23: bcdedit /dbgsettings 1394 CHANNEL:23 The following command sets the global debugger settings to USB debugging using target name DEBUGGING: bcdedit /dbgsettings USB TARGETNAME:DEBUGGING The following command sets the global debugger settings to network debugging using IPv4 with a debugger host at 192.168.1.2 communicating on port 50000: bcdedit /dbgsettings NET HOSTIP:192.168.1.2 PORT:50000 The following command sets the global debugger settings to network debugging using IPv6 with a debugger host at 2001:48:d8:2f:5e:c0:42:28:4f5b communicating on port 50000: bcdedit /dbgsettings NET HOSTIPV6:2001:48:d8:2f:5e:c0:42:28:4f5b PORT:50000 The following command sets the global debugger settings to local debugging: bcdedit /dbgsettings LOCAL
0xc100f00d	1011	This command enables or disables the kernel debugger for the specified boot entry. bcdedit /debug [] { ON \| OFF } Specifies the identifier of the entry to be modified. Only Windows boot loader entries may be specified. If not specified, {current} is used. For more information about identifiers, run "bcdedit /? ID". Examples: The following command enables kernel debugging for the current Windows operating system boot entry: bcdedit /debug ON The following command disables kernel debugging for the specified operating system entry: bcdedit /debug {cbd971bf-b7b8-4885-951a-fa03044f5d71} OFF
0xc100f00e	1011	This command enables or disables the boot debugger for the specified boot entry. Although this command works for any entry, it is only effective for boot applications. bcdedit /bootdebug [] { ON \| OFF } Specifies the identifier of the entry to be modified. For information about identifiers, run "bcdedit /? ID". Examples: The following command enables boot debugging for the Windows operating system loader of the current operating system boot entry: bcdedit /bootdebug ON The following command disables boot debugging for the Windows boot manager: bcdedit /bootdebug {bootmgr} OFF
0xc100f00f	10	This command sets the global Emergency Management Services settings for the system. Emssettings does not enable or disable Emergency Management Services for any particular boot entry. bcdedit /emssettings [ BIOS ] \| [ EMSPORT: \| [EMSBAUDRATE:] ] BIOS Specifies that the system will use BIOS settings for the Emergency Management Services configuration. This works only on systems that have Emergency Management Services support provided by the BIOS. Specifies the serial port to use as the Emergency Management Services port. This should not be specified with the BIOS option. Specifies the serial baud rate to use for Emergency Management Services. This command should not be specified with the BIOS option. is optional, and the default is 9,600 baud. Examples: The following command sets the Emergency Management Services parameters to use BIOS settings: bcdedit /emssettings BIOS The following command sets the Emergency Management Services parameters to use com2: at 115,200 baud. bcdedit /emssettings EMSPORT:2 EMSBAUDRATE:115200
0xc100f010	1011	This command enables or disables Emergency Management Services for the specified operating system boot entry. bcdedit /ems [] { ON \| OFF } Specifies the identifier of the entry to be modified. Only "Windows boot loader" entries can be specified. If not specified, {current} is used. For more information about identifiers, run "bcdedit /? ID". Example: The following command enables Emergency Management Services for the current operating system boot entry: bcdedit /ems ON
0xc100f011	1011	This command enables or disables Emergency Management Services for the specified entry. bcdedit /bootems [] { ON \| OFF } Specifies the identifier of the entry to be modified. Although this command will work for any entry, it is only effective for boot applications. Example: The following command enables Emergency Management Services for the boot manager: bcdedit /bootems {bootmgr} ON
0xc100f012	1011	This command-line option can be used with most Bcdedit commands to specify the store to be used. If this option is not specified, then the system store is used. This option may not be used with the /createstore, /import and /export commands. bcdedit /store Specifies the file name of the boot configuration data store. If the file name contains spaces, it must be enclosed in quotation marks (""). Example: The following commands list the active entries in the specified data store file: bcdedit /store C:\DATA\BCD /enum ACTIVE bcdedit /store "C:\DATA\My BCD" /enum ACTIVE
0xc100f013	1011	bcdedit /createstore This command created a new empty boot configuration data store. The created store is not a system store. Specifies the filename of the boot configuration data store. If the filename contains spaces, it must be enclosed in quotation marks (""). Example: The following command creates the specified store file: bcdedit /createstore C:\DATA\BCD
0xc100f014	1011	bcdedit /import [/clean] This command restores the state of the system store using a backup data file previously generated using the /export command. Any existing entries in the system store are deleted before the import takes place. This command is only valid for the system store. The name of the file that is imported into the system store. If the filename contains spaces, it must be enclosed in quotation marks (""). /clean Specifies that all existing firmware boot entries should be deleted (only affects EFI systems). Example: The following command imports the specified file into the system store. bcdedit /import "C:\Data\BCD Backup" /clean
0xc100f015	1011	bcdedit /export This command exports the contents of the system store into a file. This file can be used later to restore the state of the system store. This command is only valid for the system store. The filename to be used as the destination for the export. If the filename contains spaces, it must be enclosed in quotation marks (""). Example: The following command exports the system store to the specified file: bcdedit /export "C:\Data\BCD Backup"
0xc100f016	1011	Usually, any well-known entry identifiers are replaced by their friendly shorthand form. Specifying /v as a command-line switch prevents this replacement and displays all identifiers in full. Running "bcdedit /v" by itself is equivalent to running "bcdedit /enum ACTIVE /v". bcdedit /v Example: The following command lists the active entries in the system store with all entry identifiers displayed in full. bcdedit /enum ACTIVE /v
0xc100f017	1011	bcdedit /toolsdisplayorder [...] [ /addfirst \| /addlast \| /remove ] This command will set the display order to be used by the boot manager when displaying the tools menu. [...] Specifies a list of identifiers that make up the tools display order. At least one identifier must be specified and they must be separated by spaces. For more information about identifiers, run "bcdedit /? ID". /addfirst Adds the specified entry identifier to the top of the tools display order. If this switch is specified, only a single entry identifier may be specified. If the specified identifier is already in the list, it is moved to the top of the list. /addlast Adds the specified entry identifier to the end of the tools display order. If this switch is specified, only a single entry identifier may be specified. If the specified identifier is already in the list, it is moved to the end of the list. /remove Removes the specified entry identifier from the tools display order. If this switch is specified, only a single entry identifier may be specified. If the identifier is not in the list, then the operation will have no effect. If the last entry is being removed, then the tools display order value is deleted from the boot manager entry. Examples: The following command sets two tools entries and the memory diagnostic in the boot manager's tools display order: bcdedit /toolsdisplayorder {802d5e32-0784-11da-bd33-000476eba25f} {cbd971bf-b7b8-4885-951a-fa03044f5d71} {memdiag} The following command adds the specified tool entry to the end of the boot manager's tools display order: bcdedit /toolsdisplayorder {802d5e32-0784-11da-bd33-000476eba25f} /addlast
0xc100f018	1011	bcdedit /sysstore This command sets the system store device. This command is only valid for EFI systems in cases where the system store device is ambiguous. This setting does not persist across reboots. The name of a system partition to set as the the system store device. The device must be a system partition. Example: The following command sets the system store device as specified: bcdedit /sysstore C:
0xc100f021	1011	IDENTIFIERS Many of the Bcdedit commands require identifiers. An identifier uniquely identifies entries contained in the store. An identifier takes the form of a globally unique identifier, or GUID. A GUID has the following format, where each "x" represents a hexadecimal digit. {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx} For example: {d2b69192-8f14-11da-a31f-ea816ab185e9} The position of the dashes (-) and the braces at the beginning and end of the GUID are required. Several entries can be identified by well-known identifiers. If an entry has a well-known identifier, BCDedit displays it in output unless the /v command-line switch is used. For more information, run "bcdedit /? /v". The well-known identifiers are as follows: {bootmgr} Specifies the Windows boot manager entry. {fwbootmgr} Specifies the firmware boot manager entry, specifically on systems that implement the Extensible Firmware Interface (EFI) specification. {memdiag} Specifies the memory diagnostic application entry. {ntldr} Specifies a OS loader (Ntldr) that can be used to start operating systems earlier than Windows Vista. {current} Specifies a virtual identifier that corresponds to the operating system boot entry for the operating system that is currently running. {default} Specifies a virtual identifier that corresponds to the boot manager default application entry. {ramdiskoptions} Contains the additional options required by the boot manager for RAM disk devices. {dbgsettings} Contains the global debugger settings that can be inherited by any boot application entry. {emssettings} Contains the global Emergency Management Services settings that can be inherited by any boot application entry. {badmemory} Contains the global RAM defect list that can be inherited by any boot application entry. {globalsettings} Contains the collection of global settings that should be inherited by all boot application entries. {bootloadersettings} Contains the collection of global settings that should be inherited by all Windows boot loader application entries. {resumeloadersettings} Contains the collection of global settings that should be inherited by all Windows resume from hibernation application entries. {hypervisorsettings} Contains the hypervisor settings that can be inherited by any OS loader entry.
0xc100f022	1011	TYPES The /set and /deletevalue commands require a as a parameter. uniquely identifies both the data format and meaning of the value. Data types are identified using either a name or a custom type. The names are listed below, along with their data formats (in parentheses) and a short description of the custom type. If a format is not specified, then the description lists the literal values that you can use for that type. For information about data formats, run "bcdedit /? formats". The following types are valid for any entry. For information about types that are specific to a particular entry, such as boot manager entries or the Windows OS Loader entries, see the end of this help topic. Entries ======= DESCRIPTION (string) Defines the description of the entry. PATH (string) Defines the path to the application. DEVICE (device) Defines the device that the application resides on. INHERIT (list) Defines the list of entries to be inherited. For information about additional types for device objects, run "bcdedit /? TYPES DEVOBJECT". For information about additional types for particular applications, run "bcdedit /? TYPES ", where is one of the following: BOOTAPP Boot applications. These types also apply to the boot manager, memory diagnostic application, Windows OS loader, and the resume application. BOOTMGR Boot manager. BOOTSECTOR Boot sector application. CUSTOMTYPES Custom types. DEVOBJECT Device object additional options. FWBOOTMGR Firmware boot manager MEMDIAG Memory diagnostic application NTLDR OS loader that shipped with earlier Windows OS OSLOADER Windows Vista OS loader RESUME Resume application
0xc100f026	1011	The following describes the formats of the data that are required for used with the /set command. The format that is required depends on the that you specify with the /set command. For more information about the formats associated with each , run "bcdedit /? TYPES". bool A boolean value. The following values correspond to TRUE: 1, ON, YES, TRUE The following values correspond to FALSE: 0, OFF, NO, FALSE device A device can be one of the following types: BOOT PARTITION= HD_PARTITION= FILE=[] RAMDISK=[], VHD=[], LOCATE[=] The options for these types are: A drive letter with a colon and no trailing backslashes. (Required) Can be either BOOT, LOCATE, or a drive letter with colon. The square brackets do not indicate that this is optional, but are a literal part of the syntax. A path to the file (or .wim file) from the root of the parent device. The identifier to the device options entry that contains the system deployment image (SDI) options for the RAM disk. This is usually {ramdisksdioptions}. Supplies an optional element used to locate a device by looking for a specified path. The default locate element for a device is its application path (systemroot for an osdevice). Custom values must be specified using custom element syntax (see -help types customtypes), for example: locate=custom:22000002. id An entry identifier, which refers to an entry in the boot configuration data store. Run "bcdedit /? ID" for more information about identifiers. integer A 64-bit integer type. Some integer types can be set using enumerated values. integerlist A list of one or more 64-bit integers, separated by spaces. This list should not be enclosed in quotation marks. list An entry identifier list. It contains one or more entry identifiers separated by spaces. The list should not be enclosed in quotation marks. string A literal string. If it contains spaces, it should be surrounded by quotation marks ("").
0xc100f027	10	BOOT APPLICATION The following types apply to entries for boot applications. These types also apply to the boot manager, memory diagnostic application, Windows OS loader, and the resume application. For information about data formats for these types, run "bcdedit /? FORMATS". Display ======= GRAPHICSRESOLUTION Defines the graphics resolution, 1024x768, 800x600, 1024x600, etc. HIGHESTMODE (bool) Enables boot applications to use the highest graphical mode exposed by the firmware. GRAPHICSMODEDISABLED (bool) Disables graphics mode. HIGHESTMODE (bool) Forces the highest resolution supported by the firmware. NOVESA (bool) Disables the use of Video Electronics Standards Association (VESA) display modes. (Defunct.) NOVGA (bool) Disables the use of VGA modes entirely. BOOTUXDISABLED (bool) Disables boot graphics. Debugging ========= BAUDRATE (integer) Defines the baud rate for the serial debugger. BOOTDEBUG (bool) Enables the boot debugger. CHANNEL (integer) Defines the channel for the 1394 debugger. BUSPARAMS (string) Defines the PCI bus, device, and function numbers of the debugging device. For example, 1.5.0 describes the debugging device on bus 1, device 5, function 0. DEBUGADDRESS (integer) Defines the address of a serial port for the debugger. DEBUGPORT (integer) Defines the serial port number for the serial debugger. DEBUGSTART Can be ACTIVE, AUTOENABLE or DISABLE. DEBUGTYPE Can be SERIAL, 1394, USB, NET or LOCAL. DHCP (bool) Controls use of DHCP by the network debugger. DHCP set to false forces local link only address. HOSTIP Defines the host IP address for the network debugger. KEY Holds the key used to encrypt the network debug connection. NOUMEX (bool) Causes user-mode exceptions to be ignored. PORT (integer) Defines the network port for the network debugger. TARGETNAME (string) Defines the target name for the USB debugger. Memory ====== BADMEMORYACCESS (bool) Allows an application to use the memory described by the bad memory list. BADMEMORYLIST (integerlist) Defines the list of Page Frame Numbers describing faulty memory in the system. TRUNCATEMEMORY (integer) Disregard all memory at or above the specified physical address. AVOIDLOWMEMORY (integer) Avoid using memory below the specified physical address in the boot loader as much as possible. LINEARADDRESS57 Controls whether five-level paging is enabled for an application. Can be DEFAULT, OPTOUT or OPTIN. Emergency Management Services ============================= BOOTEMS (bool) Enables Emergency Management Services. EMSBAUDRATE (integer) Defines the baud rate for Emergency Management Services. EMSPORT (integer) Defines the serial port number for Emergency Management Services. Devices and Hardware =========================== CONFIGACCESSPOLICY Can be DEFAULT or DISALLOWMMCONFIG. FIRSTMEGABYTEPOLICY Can be USENONE, USEALL or USEPRIVATE. EXTENDEDINPUT (bool) Enables extended console input functionality. Applications ============ LOCALE (string) Defines the locale of the boot application. NOUMEX (bool) Causes user-mode exceptions to be ignored. Recovery ======== RECOVERYENABLED (bool) Enables the recovery sequence. RECOVERYSEQUENCE (list) Defines the recovery sequence. Verification ============ TESTSIGNING (bool) Allows pre-release test code signing certificates. FLIGHTSIGNING (bool) Allows flight-signed code signing certificates. ADDITIONALCIPOLICY(string) Defines locations of additional code integrity policies. Error Screens ============= BOOTSHUTDOWNDISABLED (bool) Indicates that the machine should not shutdown after displaying an error screen for 1 minute. The default is to attempt the shutdown. This does not work on legacy firmware. BOOTERRORUX (integer) Defines the graphics experience for boot errors. Can be Legacy, Standard or Simple. Valid only on keyboard-less devices. For additional types that apply to the boot manager, memory diagnostic application, windows OS loader, or the resume application, run "bcdedit /? TYPES ", where is one of the following: BOOTMGR The boot manager. MEMDIAG The memory diagnostic application. OSLOADER The Windows OS loader. RESUME The resume application.
0xc100f028	1011	FIRMWARE BOOT MANAGER The following types apply only to entries for the firmware boot manager. For information about data formats for these types, run "bcdedit /? FORMATS". Boot ==== BOOTSEQUENCE (list) Defines the one-time boot sequence. DEFAULT (id) Defines the default boot entry. TIMEOUT (integer) Defines the boot manager time to wait, in seconds. Display ======= DISPLAYORDER (list) Defines the boot manager display order list.
0xc100f029	1011	BOOT MANAGER The following types apply only to entries for the boot manager. For information about data formats for these types, run "bcdedit /? FORMATS". Boot ==== BOOTSEQUENCE (list) Defines the one-time boot sequence. PERSISTBOOTSEQUENCE (bool) Enables persisting a boot sequence across multiple boots. DEFAULT (id) Defines the default boot entry. TIMEOUT (integer) Defines the boot manager time to wait, in seconds, before the boot manager selects a default entry. Resume ====== RESUME (bool) Indicates that a resume operation should be attempted. RESUMEOBJECT (id) Provides the identifier of the resume application object. HIBERBOOT (bool) Indicates that a hiberboot resume should be attempted. This is used along with the RESUME setting and should not be modified. Display ======= DISPLAYBOOTMENU (bool) Enables the boot menu display. DISPLAYORDER (list) Defines the boot manager display order list. TOOLSDISPLAYORDER (list) Defines the boot manager tools display order list. For additional types that apply to the boot manager, run "bcdedit /? TYPES BOOTAPP".
0xc100f02a	10	WINDOWS OS LOADER The following types can be used only for Windows OS Loader entries. For information about data formats for these types, run "bcdedit /? FORMATS". Boot ==== BOOTLOG (bool) Enables the system initialization log. BOOTSTATUSPOLICY Can be DisplayAllFailures, IgnoreAllFailures, IgnoreShutdownFailures, IgnoreBootFailures, IgnoreCheckpointFailures, DisplayShutdownFailures, DisplayBootFailures, or DisplayCheckpointFailures. LASTKNOWNGOOD (bool) Enables boot to last known good configuration. NOCRASHAUTOREBOOT (bool) Disables automatic restart on crash. RESUMEOBJECT (id) Defines the identifier of the resume object that is associated with this operating system object. SAFEBOOT Can be Minimal, Network or DsRepair SAFEBOOTALTERNATESHELL (bool) Uses the alternate shell when booted into Safe mode. SOS (bool) Displays additional boot information. WINPE (bool) Enables the computer to boot to Windows PE. Display ======= BOOTUX Defines the graphics experience during boot. Can be Disabled, Basic or Standard. (Defunct.) BOOTMENUPOLICY Defines the type of boot menus the system will use. Can be Legacy or Standard. Options ======= ADVANCEDOPTIONS (bool) Enables advanced options. LOADOPTIONS (string) Defines any additional options that are not covered by other types. OPTIONSEDIT (bool) Enables the options editor. Processors and APICs ==================== CLUSTERMODEADDRESSING (integer) Defines the maximum number of processors to include in a single Advanced Programmable Interrupt Controller (APIC) cluster. CONFIGFLAGS (integer) Specifies processor-specific configuration flags. MAXPROC (bool) Reports the maximum number of processors in the system. NUMPROC (integer) Uses only the specified number of processors. ONECPU (bool) Forces only the boot CPU to be used. RESTRICTAPICCLUSTER (integer) Defines the largest APIC cluster number to be used by the system. USEPHYSICALDESTINATION (bool) Forces the use of the physical APIC. USELEGACYAPICMODE (bool) Forces the use of legacy APIC mode even if the processors and chipset support extended APIC mode. X2APICPOLICY (integer) Enables the use of extended APIC mode if the processors and chipset support extended APIC mode. Can be Enabled, Disabled or Default. MAXGROUP (bool) Maximizes the number of groups created in group configuration. GROUPAWARE (bool) Forces drivers to be aware of multiple groups in a multi-group environment. GROUPSIZE (integer) Specifies the size of all processor groups. Must be an integer of power of 2. Hardware Abstraction Layer (HAL) & KERNEL ========================================= HAL (string) Defines the file name for a private HAL. HALBREAKPOINT (bool) Enables the special hardware abstraction layer (HAL) breakpoint. KERNEL (string) Defines the file name for a private kernel. USEPLATFORMCLOCK (bool) Forces the use of a platform clock source for the system's performance counter. FORCELEGACYPLATFORM(bool) Forces the OS to assume the presence of legacy PC devices like CMOS, keyboard controller etc. TSCSYNCPOLICY Controls the TSC synchronization policy. Can be Default, Legacy or Enhanced.
0xc100f02b	1011	RESUME LOADER The following types apply to entries for the resume loader. For information about data formats for these types, run "bcdedit /? FORMATS". Display ======= BOOTUX Defines the graphics experience during resume. Can be Disabled, Basic, or Standard. (Defunct.) BOOTMENUPOLICY Defines the type of boot menus the system will use. Can be Legacy or Standard. Hibernation file ================ FILEDEVICE (Device) Specifies the device containing the hibernation file. FILEPATH (String) Specifies the path of the hibernation file. Other ===== ASSOCIATEDOSDEVICE (Device) Names the OS device associated with the hibernated OS. This is only useful in cases where the hibernation file is not stored on the OS device. CUSTOMSETTINGS (Boolean) Allows resume loader to use custom settings. PAE (Boolean) Indicates whether the hibernated OS was running with PAE enabled. For additional types that apply to the resume application, run "bcdedit /? TYPES BOOTAPP".
0xc100f02c	1011	MEMORY DIAGNOSTIC APPLICATION The following types apply only to entries for memory diagnostic application entries. For information about data formats for these types, run "bcdedit /? FORMATS". Test ==== PASSCOUNT (integer) The number of iterations that will be run. TESTMIX Can be BASIC or EXTENDED. CACHEENABLE (boolean) Overrides the default cache settings of the testmix. For additional types that apply to the memory diagnostic application, run "bcdedit /? TYPES BOOTAPP".
0xc100f02d	1011	DEVICE ADDITIONAL OPTIONS The following types apply to device additional options entries. For information about data formats for these types, run "bcdedit /? FORMATS". The following options are valid for the device additional options entry: Ramdisk ======= EXPORTASCD (bool) Enables exporting the RAM disk as a CD. RAMDISKIMAGELENGTH (integer) Defines the image length for the RAM disk. RAMDISKIMAGEOFFSET (integer) Defines the image offset for the RAM disk. RAMDISKSDIDEVICE (device) Defines the device on which the SDI file is located. RAMDISKSDIPATH (string) Defines the path to the SDI file. RAMDISKTFTPCLIENTPORT (integer) Defines the Trivial File Transfer Protocol (TFTP) client port for the RAM disk Windows Imaging (WIM) file. RAMDISKTFTPBLOCKSIZE (integer) Defines the Trivial File Transfer Protocol (TFTP) block size for the RAM disk Windows Imaging (WIM) file. RAMDISKTFTPWINDOWSIZE (integer) Defines the Trivial File Transfer Protocol (TFTP) window size for RAM disk Windows imaging (WIM) file. RAMDISKMCENABLED (bool) Enables or disables Multicast for RAM disk Windows Imaging (WIM) file. RAMDISKMCTFTPFALLBACK (bool) Enables fallback to TFTP if Multicast fails. RAMDISKTFTPVARWINDOW (bool) Enables or disables Trivial File Transfer Protocol (TFTP) Variable window size extension.
0xc100f02e	1011	BOOT SECTOR Boot Sector type applies to entries that contain bootsector in the form of a file. Currently there are no additional options for this type.
0xc100f02f	1011	CUSTOM TYPES A custom type identifies the data format and meaning of a value that is not represented by a friendly type name built in to BCDedit. Custom types are typically used to extend the functionality of BCD. A custom type has the following format: custom:0xXXXXXXXX The literal string "custom:" followed by an 8-digit hexadecimal number that encodes the format and meaning of the type. A custom type appears in the same parameter position as a friendly type name in a /set or /deletevalue command. For example: bcdedit /set {} custom:0xXXXXXXXX For information about custom types that can be used with this version of BCDedit, search the Microsoft Knowledge Base for these keywords: BCD, BCDedit, custom types
0xc100f030	1011	NTLDR based OS LOADER Currently there are no additional options for this type.
0xc100f031	1011	TOPICS IN THIS HELP FILE To display help for a topic, run "bcdedit /? " where is one of the following: bootdebug /bootdebug command. bootems /bootems command. bootsequence /bootsequence command. copy /copy command. create /create command. createstore /createstore command. dbgsettings /dbgsettings command. debug /debug command. default /default command. delete /delete command. deletevalue /deletevalue command. displayorder /displayorder command. eventsettings /eventsettings command. event /event command. ems /ems command. emssettings /emssettings command. enum /enum command. export /export command. FORMATS Formats for types. hypervisorsettings /hypervisorsettings command. ID Identifiers for entries.. import /import command. mirror /mirror command. set /set command. store /store command-line option. timeout /timeout command. toolsdisplayorder /toolsdisplayorder command. TYPES Types that apply to any entry. TYPES BOOTAPP Types that apply to boot applications. These include the boot manager, memory diagnostic application, Windows OS loader, and the resume application. TYPES BOOTMGR Types that apply to the boot manager. TYPES BOOTSECTOR Types that apply to the boot sector application. TYPES CUSTOMTYPES Custom types. TYPES FWBOOTMGR Types that apply to the firmware boot manager TYPES MEMDIAG Types that apply to the memory diagnostic application TYPES NTLDR Types that apply to the NTLDR based OS loader TYPES OSLOADER Types that apply to the Windows OS loader TYPES RESUME Types that apply to the resume application v /v command-line option
0xc100f032	1011	This command sets or displays the hypervisor settings for the system. This command does not enable or disable the hypervisor debugger for any particular OS loader entry. To enable or disable the hypervisor debugger for a particular OS loader entry, use "bcdedit /set HYPERVISORDEBUG ON". For information about identifiers, run "bcdedit /? ID". To set an individual hypervisor debugger setting, use "bcdedit /set {hypervisorsettings} ". For information about valid types, run "bcdedit /? TYPES". bcdedit /hypervisorsettings [ [DEBUGPORT:] [BAUDRATE:] [CHANNEL:] [HOSTIP:] [PORT:] ] Specifies the type of debugger. can be one of SERIAL, 1394, or NET. For SERIAL debugging, specifies the serial port to use as the debugging port. For SERIAL debugging, specifies the baud rate to be used for debugging. For 1394 debugging, specifies the 1394 channel to be used for debugging. For network debugging, specifies the IPv4 address of the host debugger. For network debugging, specifies the port to communicate with on the host debugger. Should be 49152 or higher. Examples: The following command displays the current hypervisor settings: bcdedit /hypervisorsettings The following command sets the hypervisor debugger settings to serial debugging over COM1 at 115,200 baud: bcdedit /hypervisorsettings SERIAL DEBUGPORT:1 BAUDRATE:115200 The following command sets the hypervisor debugger settings to 1394 debugging using channel 23: bcdedit /hypervisorsettings 1394 CHANNEL:23 The following command sets the hypervisor debugger settings to network debugging with a debugger host at 192.168.1.2 communicating on port 50000: bcdedit /hypervisorsettings NET HOSTIP:192.168.1.2 PORT:50000
0xc100f033	1011	This command creates a mirror of the specified boot entry. bcdedit [/store ] /mirror {} Specifies the store to be used. If this option is not specified, the system store is used. For more information, run "bcdedit /? store". Specifies the identifier of the entry to be mirrored. For more information about identifiers, run "bcdedit /? ID". Example: The following command creates a mirror of the specified operating system boot entry: bcdedit /mirror {cbd971bf-b7b8-4885-951a-fa03044f5d71}
0xc100f034	10	This command sets or displays the global remote event logging settings for the system. Currently this command is an alias of dbgsettings. Please see dbgsettings for more information.
0xc100f035	10	This command enables or disables the remote event logging for the specified boot entry. bcdedit /event [] { ON \| OFF } Specifies the identifier of the entry to be modified. Only Windows boot loader entries may be specified. If not specified, {current} is used. For more information about identifiers, run "bcdedit /? ID". Examples: The following command enables remote event logging for the current Windows operating system boot entry: bcdedit /event ON The following command disables remote event logging for the specified operating system entry: bcdedit /event {cbd971bf-b7b8-4885-951a-fa03044f5d71} OFF
0xc100f036	10	VESA, PCI, VGA, and TPM ======================= USEFIRMWAREPCISETTINGS (bool) Uses BIOS-configured Peripheral Component Interconnect (PCI) resources. MSI Can be Default or ForceDisable. VGA (bool) Forces the use of the VGA display driver. TPMBOOTENTROPY Can be Default, ForceDisable, or ForceEnable. Debugging and Performance ========================= DBGTRANSPORT (string) Defines the file name for a private debugger transport. DEBUG (bool) Enables kernel debugging. PERFMEM (integer) Specifies the size (in megabytes) of the buffer to allocate for performance data logging. Memory ====== INCREASEUSERVA (integer) Increases the amount of virtual address space that the user-mode processes can use, in MBs. NOLOWMEM (bool) Disables the use of low memory. NX Can be OptIn, OptOut, AlwaysOn or AlwaysOff. PAE Can be Default, ForceEnable, ForceDisable. REMOVEMEMORY (integer) Removes memory, in MBs, from the total available memory that the operating system can use. Drivers and System Root ======================= DRIVERLOADFAILUREPOLICY Can be Fatal or UseErrorControl. EMS (bool) Enables kernel Emergency Management Services. OSDEVICE (device) Defines the device that contains the system root. SYSTEMROOT (string) Defines the path to the system root. Hypervisor ========== HYPERVISORLAUNCHTYPE Controls the hypervisor launch type. Can be Off or Auto. HYPERVISORDEBUG (bool) Enables hypervisor debugging. HYPERVISORDEBUGTYPE Can be SERIAL, 1394, or NET. HYPERVISORDEBUGPORT (integer) Defines the serial port number for the serial debugger. HYPERVISORBAUDRATE (integer) Defines the baud rate for the serial debugger. HYPERVISORCHANNEL (integer) Defines the channel for the 1394 debugger. HYPERVISORHOSTIP (integer) Defines the IPv4 address of the debugger host for the network debugger. HYPERVISORHOSTPORT (integer) Defines the UDP port to communicate with on the debugger host for the network debugger. HYPERVISORBUSPARAMS (string) Defines the PCI bus, device, and function numbers of the debugging device. For example, 1.5.0 describes the debugging device on bus 1, device 5, function 0. HYPERVISORUSELARGEVTLB (bool) Increases virtual TLB size. HYPERVISORIOMMUPOLICY Controls the hypervisor IOMMU policy. Can be default, enable or disable. Virtual Secure Mode =================== VSMLAUNCHTYPE Controls the Virtual Secure Mode launch type. Can be Off or Auto. For additional types that apply to the Windows OS Loader, run "bcdedit /? TYPES BOOTAPP".
0x1001010	11	VHD Boot Options ---------------------
0x81009001	11	Warning: The EMS port and baudrate settings are only supported on x64-based platforms.
0xc1008046	11	The port must be greater than 49151 and less than 65536, or equal to the IANA reserved KDNET port value of 5364. Run "bcdedit -dbgsettings /?" for command line assistance.
0xc1008052	11	An error occurred while attempting to modify the debugger settings. The remote event logging settings must be disabled to enable the debugger settings.
0xc100f001	11	BCDEDIT - Boot Configuration Data Store Editor The Bcdedit.exe command-line tool modifies the boot configuration data store. The boot configuration data store contains boot configuration parameters and controls how the operating system is booted. These parameters were previously in the Boot.ini file (in BIOS-based operating systems) or in the nonvolatile RAM entries (in Extensible Firmware Interface-based operating systems). You can use Bcdedit.exe to add, delete, edit, and append entries in the boot configuration data store. For detailed command and option information, type bcdedit.exe /? . For example, to display detailed information about the /createstore command, type: bcdedit.exe /? /createstore For an alphabetical list of topics in this help file, run "bcdedit /? TOPICS". Commands that operate on a store ================================ /store Used to specify a BCD store other than the current system default. /createstore Creates a new and empty boot configuration data store. /export Exports the contents of the system store to a file. This file can be used later to restore the state of the system store. /import Restores the state of the system store using a backup file created with the /export command. /sysstore Sets the system store device (only affects EFI systems, does not persist across reboots, and is only used in cases where the system store device is ambiguous). Commands that operate on entries in a store =========================================== /copy Makes copies of entries in the store. /create Creates new entries in the store. /delete Deletes entries from the store. /mirror Creates mirror of entries in the store. Run bcdedit /? ID for information about identifiers used by these commands. Commands that operate on entry options ====================================== /deletevalue Deletes entry options from the store. /set Sets entry option values in the store. Run bcdedit /? TYPES for a list of datatypes used by these commands. Run bcdedit /? FORMATS for a list of valid data formats. Commands that control output ============================ /enum Lists entries in the store. /v Command-line option that displays entry identifiers in full, rather than using names for well-known identifiers. Use /v by itself as a command to display entry identifiers in full for the ACTIVE type. Running "bcdedit" by itself is equivalent to running "bcdedit /enum ACTIVE". Commands that control the boot manager ====================================== /bootsequence Sets the one-time boot sequence for the boot manager. /default Sets the default entry that the boot manager will use. /displayorder Sets the order in which the boot manager displays the multiboot menu. /timeout Sets the boot manager time-out value. /toolsdisplayorder Sets the order in which the boot manager displays the tools menu. Commands that control Emergency Management Services for a boot application ========================================================================== /bootems Enables or disables Emergency Management Services for a boot application. /ems Enables or disables Emergency Management Services for an operating system entry. /emssettings Sets the global Emergency Management Services parameters. Command that control debugging ============================== /bootdebug Enables or disables boot debugging for a boot application. /dbgsettings Sets the global debugger parameters. /debug Enables or disables kernel debugging for an operating system entry. /hypervisorsettings Sets the hypervisor parameters. Command that control remote event logging ========================================= /eventsettings Sets the global remote event logging parameters. /event Enables or disables remote event logging for an operating system entry.
0xc100f00f	11	This command sets the global Emergency Management Services settings for the system. Emssettings does not enable or disable Emergency Management Services for any particular boot entry. bcdedit /emssettings [ BIOS ] \| [ EMSPORT: \| [EMSBAUDRATE:] ] BIOS Specifies that the system will use BIOS or UEFI settings for the Emergency Management Services configuration. This option works only on systems with ACPI firmware that presents a Serial Port Console Redirection (SPCR) table. Specifies the serial port to use as the Emergency Management Services port. This should not be specified with the BIOS option. Only supported on x64-based systems. Specifies the serial baud rate to use for Emergency Management Services. This argument should not be specified with the BIOS option. is optional, and the default is 9,600 baud. Only supported when EMSPORT is specified. Examples: The following command sets the Emergency Management Services parameters to use BIOS settings: bcdedit /emssettings BIOS The following command sets the Emergency Management Services parameters to use com2: at 115,200 baud. bcdedit /emssettings EMSPORT:2 EMSBAUDRATE:115200
0xc100f027	11	BOOT APPLICATION The following types apply to entries for boot applications. These types also apply to the boot manager, memory diagnostic application, Windows OS loader, and the resume application. For information about data formats for these types, run "bcdedit /? FORMATS". Display ======= GRAPHICSRESOLUTION Defines the graphics resolution, 1024x768, 800x600, 1024x600, etc. HIGHESTMODE (bool) Enables boot applications to use the highest graphical mode exposed by the firmware. GRAPHICSMODEDISABLED (bool) Disables graphics mode. HIGHESTMODE (bool) Forces the highest resolution supported by the firmware. NOVESA (bool) Disables the use of Video Electronics Standards Association (VESA) display modes. (Defunct.) NOVGA (bool) Disables the use of VGA modes entirely. BOOTUXDISABLED (bool) Disables boot graphics. Debugging ========= BAUDRATE (integer) Defines the baud rate for the serial debugger. BOOTDEBUG (bool) Enables the boot debugger. CHANNEL (integer) Defines the channel for the 1394 debugger. BUSPARAMS (string) Defines the PCI bus, device, and function numbers of the debugging device. For example, 1.5.0 describes the debugging device on bus 1, device 5, function 0. DEBUGADDRESS (integer) Defines the address of a serial port for the debugger. DEBUGPORT (integer) Defines the serial port number for the serial debugger. DEBUGSTART Can be ACTIVE, AUTOENABLE or DISABLE. DEBUGTYPE Can be SERIAL, 1394, USB, NET or LOCAL. DHCP (bool) Controls use of DHCP by the network debugger. DHCP set to false forces local link only address. HOSTIP Defines the host IP address for the network debugger. KEY Holds the key used to encrypt the network debug connection. NOUMEX (bool) Causes user-mode exceptions to be ignored. PORT (integer) Defines the network port for the network debugger. TARGETNAME (string) Defines the target name for the USB debugger. Memory ====== BADMEMORYACCESS (bool) Allows an application to use the memory described by the bad memory list. BADMEMORYLIST (integerlist) Defines the list of Page Frame Numbers describing faulty memory in the system. TRUNCATEMEMORY (integer) Disregard all memory at or above the specified physical address. AVOIDLOWMEMORY (integer) Avoid using memory below the specified physical address in the boot loader as much as possible. LINEARADDRESS57 Controls whether five-level paging is enabled for an application. Can be DEFAULT, OPTOUT or OPTIN. Emergency Management Services ============================= BOOTEMS (bool) Enables Emergency Management Services. EMSBAUDRATE (integer) Defines the baud rate for Emergency Management Services. EMSPORT (integer) Defines the serial port number for Emergency Management Services. Devices and Hardware =========================== CONFIGACCESSPOLICY Can be DEFAULT or DISALLOWMMCONFIG. FIRSTMEGABYTEPOLICY Can be USENONE, USEALL or USEPRIVATE. EXTENDEDINPUT (bool) Enables extended console input functionality. Applications ============ LOCALE (string) Defines the locale of the boot application. NOUMEX (bool) Causes user-mode exceptions to be ignored. Recovery ======== RECOVERYENABLED (bool) Enables the recovery sequence. RECOVERYSEQUENCE (list) Defines the recovery sequence. Verification ============ TESTSIGNING (bool) Allows pre-release test code signing certificates. FLIGHTSIGNING (bool) Allows flight-signed code signing certificates. ADDITIONALCIPOLICY(string) Defines locations of additional code integrity policies. Error Screens ============= BOOTSHUTDOWNDISABLED (bool) Indicates that the machine should not shutdown after displaying an error screen for 1 minute. The default is to attempt the shutdown. This does not work on legacy firmware. BOOTERRORUX (integer) Defines the graphics experience for boot errors. Can be Legacy, Standard or Simple. Valid only on keyboard-less devices. For additional types that apply to the boot manager, memory diagnostic application, windows OS loader, or the resume application, run "bcdedit /? TYPES ", where is one of the following: BOOTMGR The boot manager. MEMDIAG The memory diagnostic application. OSLOADER The Windows OS loader. RESUME The resume application.
0xc100f02a	11	WINDOWS OS LOADER The following types can be used only for Windows OS Loader entries. For information about data formats for these types, run "bcdedit /? FORMATS". Boot ==== BOOTLOG (bool) Enables the system initialization log. BOOTSTATUSPOLICY Can be DisplayAllFailures, IgnoreAllFailures, IgnoreShutdownFailures, IgnoreBootFailures, IgnoreCheckpointFailures, DisplayShutdownFailures, DisplayBootFailures, or DisplayCheckpointFailures. LASTKNOWNGOOD (bool) Enables boot to last known good configuration. NOCRASHAUTOREBOOT (bool) Disables automatic restart on crash. RESUMEOBJECT (id) Defines the identifier of the resume object that is associated with this operating system object. SAFEBOOT Can be Minimal, Network or DsRepair SAFEBOOTALTERNATESHELL (bool) Uses the alternate shell when booted into Safe mode. SOS (bool) Displays additional boot information. WINPE (bool) Enables the computer to boot to Windows PE. Display ======= BOOTUX Defines the graphics experience during boot. Can be Disabled, Basic or Standard. (Defunct.) BOOTMENUPOLICY Defines the type of boot menus the system will use. Can be Legacy or Standard. Options ======= ADVANCEDOPTIONS (bool) Enables advanced options. LOADOPTIONS (string) Defines any additional options that are not covered by other types. OPTIONSEDIT (bool) Enables the options editor. Processors and APICs ==================== CLUSTERMODEADDRESSING (integer) Defines the maximum number of processors to include in a single Advanced Programmable Interrupt Controller (APIC) cluster. CONFIGFLAGS (integer) Specifies processor-specific configuration flags. MAXPROC (bool) Reports the maximum number of processors in the system. NUMPROC (integer) Uses only the specified number of processors. ONECPU (bool) Forces only the boot CPU to be used. RESTRICTAPICCLUSTER (integer) Defines the largest APIC cluster number to be used by the system. USEPHYSICALDESTINATION (bool) Forces the use of the physical APIC. USELEGACYAPICMODE (bool) Forces the use of legacy APIC mode even if the processors and chipset support extended APIC mode. X2APICPOLICY (integer) Enables the use of extended APIC mode if the processors and chipset support extended APIC mode. Can be Enabled, Disabled or Default. MAXGROUP (bool) Maximizes the number of groups created in group configuration. GROUPAWARE (bool) Forces drivers to be aware of multiple groups in a multi-group environment. GROUPSIZE (integer) Specifies the size of all processor groups. Must be an integer of power of 2. Hardware Abstraction Layer (HAL) & KERNEL ========================================= HAL (string) Defines the file name for a private HAL. HALBREAKPOINT (bool) Enables the special hardware abstraction layer (HAL) breakpoint. KERNEL (string) Defines the file name for a private kernel. USEPLATFORMCLOCK (bool) Forces the use of a platform clock source for the system's performance counter. FORCELEGACYPLATFORM(bool) Forces the OS to assume the presence of legacy PC devices like CMOS, keyboard controller etc.
0xc100f034	11	This command sets or displays the global remote event logging settings for the system. Currently this command is an alias of dbgsettings. Please see dbgsettings for more information.
0xc100f035	11	This command enables or disables the remote event logging for the specified boot entry. bcdedit /event [] { ON \| OFF } Specifies the identifier of the entry to be modified. Only Windows boot loader entries may be specified. If not specified, {current} is used. For more information about identifiers, run "bcdedit /? ID". Examples: The following command enables remote event logging for the current Windows operating system boot entry: bcdedit /event ON The following command disables remote event logging for the specified operating system entry: bcdedit /event {cbd971bf-b7b8-4885-951a-fa03044f5d71} OFF
0xc100f036	11	VESA, PCI, VGA, and TPM ======================= USEFIRMWAREPCISETTINGS (bool) Uses BIOS-configured Peripheral Component Interconnect (PCI) resources. MSI Can be Default or ForceDisable. VGA (bool) Forces the use of the VGA display driver. TPMBOOTENTROPY Can be Default, ForceDisable, or ForceEnable. Debugging and Performance ========================= DBGTRANSPORT (string) Defines the file name for a private debugger transport. DEBUG (bool) Enables kernel debugging. PERFMEM (integer) Specifies the size (in megabytes) of the buffer to allocate for performance data logging. NOKDNIC (boolean) Causes the OS to skip loading the KDNIC driver for any network adaptor being used for kernel debugging. Memory ====== INCREASEUSERVA (integer) Increases the amount of virtual address space that the user-mode processes can use, in MBs. NOLOWMEM (bool) Disables the use of low memory. NX Can be OptIn, OptOut, AlwaysOn or AlwaysOff. PAE Can be Default, ForceEnable, ForceDisable. REMOVEMEMORY (integer) Removes memory, in MBs, from the total available memory that the operating system can use. Drivers and System Root ======================= DRIVERLOADFAILUREPOLICY Can be Fatal or UseErrorControl. EMS (bool) Enables kernel Emergency Management Services. OSDEVICE (device) Defines the device that contains the system root. SYSTEMROOT (string) Defines the path to the system root. Hypervisor ========== HYPERVISORLAUNCHTYPE Controls the hypervisor launch type. Can be Off, Auto, or On. HYPERVISORDEBUG (bool) Enables hypervisor debugging. HYPERVISORDEBUGTYPE Can be SERIAL, 1394, or NET. HYPERVISORDEBUGPORT (integer) Defines the serial port number for the serial debugger. HYPERVISORBAUDRATE (integer) Defines the baud rate for the serial debugger. HYPERVISORCHANNEL (integer) Defines the channel for the 1394 debugger. HYPERVISORHOSTIP (integer) Defines the IPv4 address of the debugger host for the network debugger. HYPERVISORHOSTPORT (integer) Defines the UDP port to communicate with on the debugger host for the network debugger. HYPERVISORBUSPARAMS (string) Defines the PCI bus, device, and function numbers of the debugging device. For example, 1.5.0 describes the debugging device on bus 1, device 5, function 0. HYPERVISORUSELARGEVTLB (bool) Increases virtual TLB size. HYPERVISORIOMMUPOLICY Controls the hypervisor IOMMU policy. Can be default, enable or disable. Virtual Secure Mode =================== VSMLAUNCHTYPE Controls the Virtual Secure Mode launch type. Can be Off or Auto. For additional types that apply to the Windows OS Loader, run "bcdedit /? TYPES BOOTAPP".
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