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  • Mandar Gothoskar thinks this is interesting:

The WUA performs the compliance scan and marks each update with a compliance state. An update can be in one of four states:

images Required: This means the update is still needed on the client system or that it is installed but requires a restart. If the update needs a reboot, it is not considered installed until that reboot occurs.

images Not Required: This means the update is not applicable on the local system.

From

Cover of System Center Configuration Manager Current Branch Unleashed, First Edition

Note

Update Compliance States