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WU_E_METADATA_TIMESTAMP_TOKEN_VALIDITY_WINDOW
WU_E_METADATA_TIMESTAMP_TOKEN_VALIDITY_WINDOW means the timestamp token exists but falls outside the validity period accepted by the metadata-verification policy.
What to check
- Verify the device date, time zone, and time synchronization before concluding that the token itself is stale.
- Check whether the server or a cache is returning old metadata after a signing or catalog update.
- For internal publishing, review timestamping policy and metadata validity settings on the service that produced the catalog.
Microsoft: Windows Update security
Microsoft: Windows Update log files
Microsoft: Windows Update error reference
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