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WU_E_METADATA_TIMESTAMP_TOKEN_ALL_BAD
WU_E_METADATA_TIMESTAMP_TOKEN_ALL_BAD means Windows Update found timestamp-token entries in its cache, but none passed validation. The failure can be caused by stale, expired, untrusted, or malformed cached evidence.
How to approach it
- Look for the per-token failure codes that explain why each cached token was rejected.
- Check client time and certificate trust before treating the cache itself as corrupt.
- If the client can reach the proper update source, the logs should show whether an online refresh was attempted and why it succeeded or failed.
Microsoft: Windows Update log files
Microsoft: Windows Update security
Microsoft: Windows Update error reference
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