I needed to expand my Windows 2008 R2 server with extra HDD data. I had an ISO available with VIOSTOR drivers (Virtio Storage) and autodetected the drivers. How could I be so stupid.
after reboot: BSOD and BSOD and stupid as I was I was unable to go back to ‘last good known configuration’.
first of all I had to pick the drivers for Windows 2008 from this location: ISO/viostor/2k8/(R2 if you have it)/amd64/viostor.*
To stop the BSOD from happening:
Find the viostor drivers (probably):
Similarly renamed both
Please be noticed that it can cost you a NEW license if you add this driver. Your hardware can be changed and it could be that Microsoft does not allow your key anymore.