BOOTLOG_NOT_LOADED
Boot log skipped-driver marker
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
- Installing a boot-start driver
- Microsoft Bug Check Code Reference
- Analyze a kernel-mode dump with WinDbg
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