We patched all our servers yesterday and all updates installed fine on our 2012 and 2019 servers, but every one of our 2016 servers failed to install any of the 3 updates (cumulative, stacking from Feb 2021, and another smaller server update). The download/install from Windows Update would get to 21% and hang. I tried rebooting one of the servers and installing the updates manually, but they get stuck on Copying packages to the Windows Update cache... I also tried stopping the WU service, deleting the SoftwareDistribution folder under c:\windows but that did not help either. Any solutions or workarounds?