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  • Mandar Gothoskar thinks this is interesting:

Note that setting this GPO to Disabled doesn’t actually disable the WUA service. It does disable all of the automatic functionality of the WUA, including scanning. This means the WUA is not automatically installing any updates or causing any issues with ConfigMgr; the service is there and running when needed but not doing anything until ConfigMgr tells it to through the WUAHandler component.

From

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

Note

GPO for WUA settings