We have many servers running on Vmware mostly 2012. I am updating as many as we can to 2019. I'm finding some I can but others I cannot. When it works its fine but when it doesn't they start to ;load, reboot and just stall at the Windows Tile screen. In Vsphere I see they show 100% CPU. I can leave them for hours and they never finish. I make snapshots before this so I can just revert it back. On the ones that fail it wil let me update them to 2016 using the same process but even once on 2016 it won't go to 2019. These are all Virtual machines does any one know what I can check?