edit : I have edited the title because I finally nailed the problem : KB4589208
Hi,
Previously applied update was 2020-10 cumulative updates. Windows update was disabled since.
Now I'm trying to apply the latest updates
After applying them, the server does not start.
Back screen of death : Stop 0xc0000225. A required device is missing... (could be more specific. I guess it is not missing a printer, a cpu etc...)
Booting on a DVD, does not even proposes "repair". The only option I Have is to open a command prompt.
I tried some "bcdedit" tricks to rebuid the boot manager. No way.
I can mount the disk in another VM. chkdsk is OK.
This is absolutely flabbergasting.
Fortunately I had taken a snapshot at the virtualization layer before updating. So I reverted to the snapshot.
Since then, I tried automatic updates several times (on snapshots) over the last few weeks. It consistently fails the same way.
