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WU_E_SIH_NO_ENGINE
WU_E_SIH_NO_ENGINE means the SIH server response did not provide the engine that the client expected for the healing operation. This is typically a response, compatibility, or configuration problem.
What to verify
- Record the service ID, target metadata version, and client OS version from SIH events.
- Check whether the Windows servicing level is current enough for the offered healing flow.
- For centrally managed devices, verify that update-source settings have not changed while the operation was in progress.
Microsoft: SIH client diagnostic event fields
Microsoft: update Windows Update Agent to latest version
Microsoft: Windows Update error reference
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