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WU_E_INVENTORY_UNEXPECTED
WU_E_INVENTORY_UNEXPECTED is a catch-all result from the inventory component. The code itself does not identify the failing collector, rule, or service operation, so the earlier log records are essential.
Useful approach
- Search backward from this HRESULT in
WindowsUpdate.logfor the first component-specific error. - Check whether a single update service, hardware class, or device model is affected.
- Do not treat this as a reason to delete caches before you have identified the failing inventory phase.
Microsoft: Get-WindowsUpdateLog
Microsoft: Windows Update Agent API
Microsoft: Windows Update error reference
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