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STATUS_IMAGE_MP_UP_MISMATCH
The image variant does not match the processor configuration
Historical Windows components could exist in uniprocessor and multiprocessor variants with different low-level assumptions. This status identifies an image modified for a uniprocessor system while the current installation is using a multiprocessor kernel environment. It is primarily relevant to legacy system files and old deployment media.
Processor affinity does not turn a multiprocessor system into the expected platform because kernel synchronization and binary implementation choices remain different. The correct repair is to restore the matching component from the same Windows build and servicing level.
What to inspect
- Record the image path, version, timestamp, signature, and the exact operating-system build from which it came.
- Check offline servicing, image cloning, or manual file replacement that mixed components from different installations.
- Restore the file through supported servicing or installation media rather than copying an arbitrary same-named binary.
- Do not use affinity masks or boot options as a substitute for a correctly matched system image.
References
- Microsoft Open Specifications: NTSTATUS values
- Microsoft: PE and COFF format
- Microsoft: verifying the signature of a PE file
- Microsoft: Code Integrity event log messages
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