BSOD 0x69 (IO1_INITIALIZATION_FAILED): causes and diagnosis

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: IO1_INITIALIZATION_FAILED means Windows could not initialize the I/O subsystem during system startup.

Could be also:
Constant	Type	OS
ERROR_SEM_OWNER_DIED	Win32 error	Windows
ENOBUFS	errno	Linux
EOWNERDEAD	errno	Mac
ECANCELED	errno	Windows

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FILE_INITIALIZATION_FAILED	LPC_INITIALIZATION_FAILED

IO1_INITIALIZATION_FAILED

The IO1_INITIALIZATION_FAILED bug check has a value of 0x00000069. This bug check indicates that the initialization of the I/O system failed for some reason.

IO1_INITIALIZATION_FAILED Parameters

None

Cause

There is very little information available to analyze this error.

Most likely, the setup routine has improperly installed the system, or a user has reconfigured the system.

Focus on the earliest I/O initialization failure in the boot stack and logs; storage, Plug and Play, or registry dependencies can be the upstream cause.

References

Microsoft: Bug Check Code Reference

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