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Windows update registry settings question

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digimonx
Frequent Visitor

There is a number of Windows 2016 Datacenter Edition servers that I want to set up to apply Windows updates automatically based on the registry settings at

HKLM\Software\Policies\Microsoft\Windows\WindowsUpdate\AU.

But the servers keep applying updates at the random times, and not at the time I set in the registry.

For instance, AUOptions set to 4, NoAutoUpdate to 0, ScheduledInstallDay to 5 and ScheduledInstallTime to 20 (attached picture), the server was restarted, but the update were applied on a different day.

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