What does BSOD 0x66 (CACHE_INITIALIZATION_FAILED) mean?

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: The cache manager failed during Windows startup initialization.

Could be also:
Constant	Type	OS
ERROR_SEM_IS_SET	Win32 error	Windows
HTTP_STATUS_PROCESSING	HTTP Code	Any
ENETRESET	errno	Linux
EOPNOTSUPP	errno	Mac
EAFNOSUPPORT	errno	Windows

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MEMORY1_INITIALIZATION_FAILED	CONFIG_INITIALIZATION_FAILED

CACHE_INITIALIZATION_FAILED

Cache manager initialization failure for CACHE_INITIALIZATION_FAILED

CACHE_INITIALIZATION_FAILED is bug check code 0x00000066.

The cache manager coordinates cached file I/O with the memory manager and file systems. This boot-phase bug check means the system could not initialize required cache-manager state.

How to read it in a dump

Look for interactions with memory manager, file systems, storage, and boot-start file-system filters.
The failure is early in startup, before normal cached I/O workloads.
Memory pressure, corrupted system files, or filter drivers may be involved.

What to check

Check boot-start file-system filters, storage drivers, and system file integrity.
Inspect memory manager and cache manager stack frames.
Compare with FILE_INITIALIZATION_FAILED and DIRTY_* memory bug checks if multiple dumps exist.

References

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