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WU_E_EE_MISSING_METADATA
WU_E_EE_MISSING_METADATA means the applicability expression lacks metadata nodes that the evaluator requires. The update record may be incomplete or was not fully synchronized.
What to verify
- Check the failing update identity and the update source.
- Review whether metadata synchronization or catalog publication ended with warnings or interruptions.
- Check a fresh scan after the source metadata is corrected; repeated install attempts cannot fix an incomplete applicability expression.
Metadata fragments are obtained in stages
MS-WUSP does not require the client to download every metadata fragment in one initial synchronization step. The core fragment is sufficient to decide whether additional information is needed, and GetExtendedUpdateInfo obtains further fragments. A missing-node evaluator error is therefore evidence to inspect the revision and metadata flow, not the binary payload of the update.
For WSUS or another managed source, compare the failing revision with the server's synchronized metadata and look for interrupted synchronization around that revision. Repeating installation cannot reconstruct an expression tree whose required metadata nodes are absent; the correction must occur before applicability evaluation can succeed.
References
References
- Microsoft Open Specifications: GetExtendedUpdateInfo metadata fragments
- Microsoft Open Specifications: SyncUpdates
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