Hello again!
Here's the result of my anguish with a 2012 server that doesn't have a digital signature of the processor driver running.
The OS cannot update the processor driver - monthly OS updates are not installed
When installing and updating such drivers, the digital signature of the OS is determined by entries in the registry.
There is corruption in the registry on my server and OS incorrectly detects the presence of a digital signature for CPU "driver".
Therefore, there is a long workaround...
IP KVM is not needed. F8 does not need to be pressed when booting.
it is necessary:
- Check what is already there, or copy the new driver folder to the C:\Windows\System32\DriverStore\FileRepository
- Check what is already there, or copy the new driver folder to the C:\Windows\WinSxS
- Check what is already there, or add the hive to the HKEY_LOCAL_MACHINE\SYSTEM\DriverDatabase\DriverPackages
- Fix values in section HKEY_LOCAL_MACHINE\SYSTEM\DriverDatabase\DriverInfFiles
I wrote "check availability" as when trying to install an update, the OS usually adds the necessary directories and entries.
After that, you need to install the driver from the C:\Windows\WinSxS directory and start the update installation.
Of course, with such manipulations, you need to have another server with a similar version of the OS at hand.
I was able to do all this remotely and without going to the client.
Of course, the best option in this situation is to reinstall the server.
Thank you all for your help!