Hi @RichWines-9402,
Could we check if the setting is configured as the following screenshot?
And we could check AUOptions is set as 4 in the registry editor, kindly navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU,
And here is the similar case we could refer to:
https://community.spiceworks.com/topic/2242747-updates-download-but-won-t-install
Note: the above links are not from MS, and just for your reference.
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