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WU_E_METADATA_TIMESTAMP_TOKEN_UNEXPECTED
WU_E_METADATA_TIMESTAMP_TOKEN_UNEXPECTED is the generic timestamp-token verification error when no more specific code applies. It should be treated as a signal to inspect the detailed verification sequence, not as a standalone diagnosis.
Best next step
- Look for earlier errors concerning token signature, certificate chain, validity window, cache lookup, or online refresh.
- Keep the original log and record the update source and timestamp, because the same condition may be server-specific.
- Do not weaken certificate or signature validation as a workaround.
Microsoft: Get-WindowsUpdateLog
Microsoft: Windows Update security
Microsoft: Windows Update error reference
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