Greetings. I have an on-prem Windows Server 2019 Datacenter with the Hyper-V Role enabled running about 10 VMs. I was applying an update to one of the VMs, a Windows Server 2016 running Exchange 2016. The update, CU23, failed, forcing me to restore the machine. Prior to the attempted update I had VeeamZipped it from the B&R 11A CE panel, and so I launched the restore from there. After restoration I had quite a bit of troubleshooting to do to get mail flow back but I was completely successful.
The remaining issue is this: Upon VM startup, there is a long pause, 3 full minutes, during which I see the expected black screen with “Hyper-V” logo smack in the middle, but it sits there doing absolutely nothing I can see. No circle of dots, just the Hyper-V text. After 3 minutes the circling dots begin and I have desktop in about 30 seconds. and everything runs normally. The disk layout is the usual Recovery, EFI and OS partitions.
Has anyone run into anything similar? Thanks for any thoughts!