What does BSOD 0xB6 (BOOTLOG_NOT_LOADED) mean?

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: BOOTLOG_NOT_LOADED records that a driver was considered during boot but was not loaded into the active boot profile.

Could be also:
Constant	Type	OS
ERROR_INVALID_ORDINAL	Win32 error	Windows

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BOOTLOG_LOADED	BOOTLOG_ENABLED

BOOTLOG_NOT_LOADED

Boot log skipped-driver marker for BOOTLOG_NOT_LOADED

BOOTLOG_NOT_LOADED is bug check code 0x000000B6.

This value tells you that a driver was considered but did not load in the boot profile. It may be expected in Safe Mode, after hardware removal, or when a service start type and dependency graph exclude it.

How to read it in a dump

Interpret it with boot mode, start type, hardware presence, and dependency state.
A not-loaded marker is not automatically an error.
It becomes important when a required boot or storage driver is skipped unexpectedly.

What to check

Compare Safe Mode and normal boot logs.
Check service start type, driver signing, device presence, and dependencies.
Focus on boot-critical not-loaded entries when diagnosing startup failures.

References

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