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WU_E_METADATA_XML_MODE_INVALID
WU_E_METADATA_XML_MODE_INVALID means the metadata configuration contains an enforcement mode the client does not recognize or cannot use. This can indicate malformed server output or a compatibility mismatch.
Useful checks
- Check whether the error began after an update-server, catalog, or policy change.
- Compare the configuration and client version with a working deployment where possible.
- Keep the metadata security checks intact; use the log to isolate the update source that sent the unsupported mode.
Microsoft: Windows Update security
Microsoft: Windows Update log files
Microsoft: Windows Update error reference
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