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WU_E_METADATA_TIMESTAMP_TOKEN_VERIFICATION_FAILED
WU_E_METADATA_TIMESTAMP_TOKEN_VERIFICATION_FAILED means a timestamp token was present but Windows Update could not validate it. The underlying reason may be signature, certificate-chain, validity-window, or data-format related.
How to investigate
- Look for a more specific timestamp-token HRESULT immediately before this generic one.
- Check time synchronization on the client and whether the same update source fails for other devices.
- For internal catalogs, inspect signing and timestamping infrastructure rather than accepting unverified metadata.
Microsoft: Windows Update log files
Microsoft: Windows Update security
Microsoft: Windows Update error reference
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