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WU_E_TOO_DEEP_RELATION
WU_E_TOO_DEEP_RELATION means the agent encountered an update relationship chain deeper than it can evaluate. Relationships can describe prerequisites, bundles, supersedence, or other update dependencies.
Why it matters
- This is a metadata/evaluation issue, not a simple download error.
- Capture the update identity and source from the log so the relationship chain can be examined.
- If the issue is limited to content from a managed service, review that service’s synchronized metadata rather than deleting local data blindly.
Microsoft: WUA success and error codes
Microsoft: Windows Update log files
Microsoft: Windows Update error reference
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