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| WU_E_REDIRECTOR_ID_SMALLER | WU_E_REDIRECTOR_UNSUPPORTED_CONTENTTYPE |
WU_E_REDIRECTOR_UNKNOWN_SERVICE
WU_E_REDIRECTOR_UNKNOWN_SERVICE means the redirector received or selected a service ID that is not supported in the current Windows Update service environment.
What to verify
- Check the configured update source and service registration rather than treating this as a download failure.
- In WSUS-managed environments, confirm that policy points the client to the intended service and that the service supports the device.
- Use the log to identify the service ID and the preceding redirector decision.
Microsoft: Windows Update error reference
Microsoft: Group Policy settings for Automatic Updates
Microsoft: Windows Update log files
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