Received two separate computers into the shop, both with no video, both recently downloaded "Live Anti-virus. Removed the disks from the computer and installed them via USB on the shop computer. Ran antivirus scans. Nothing found. Both machines, one a Dell and the other an HP exhibit exactly the same symptoms. With no video, I cannot scan the drives in their natural environment. Unable to access the Safe Mode. Anyone know whether this "ransom" program disables the video? Any way I can force a return of the video?