Windows 2012 R2 Server was unbootable after applying October 2021 Windows Updates. Go into Edit Settings on VM and switch the Windows boot disk to SCSI Controller 0 (it was on 1 which was the paravirtual.)   Force VM to boot into EFI Boot - verify it sees the disk nowTry to reboot normally - no … Continue reading October Windows Update Renders VMWare 2012 R2 Server Unbootable