E_SHELL_EXTENSION_BLOCKED

Code: 0x80270301 (2150040321)

As HRESULT:

S: 1 (Failure)
C: 0 (Microsoft-defined)
N: 0 (Not an NTSTATUS value)
Facility: 0x027 (FACILITY_SHELL: User shell)
Code: 0x0301 (769)

As NTSTATUS:

Sev: 2 (STATUS_SEVERITY_WARNING)
C: 0 (Microsoft-defined)
Facility: 0x027 (Unknown facility)
Code: 0x0301 (769)