Windows Error System

Pages:

• Error code formats
• List by module
• List by header
• Bug check codes, by subsystem
• Device Manager problem codes
• Win32 code listings

The Microsoft Windows operating system uses a variety of APIs from various subsystems with different error code formats.

The online database contains error codes, symbolic names, descriptions, and messages from various official Microsoft sources, including the modules available on the operating system.

All error code values and structure tables described in the Windows pages use the little-endian memory ordering for multi-bit and multi-byte definitions.

The different error code types are listed below. The following links detail each type of error codes seen across the Windows ecosystem.

Scanned Releases

Module messages are tagged with the releases they were found on.