I am trying to disinfect my son't five year old Dell PC running Vista 64bit system. About five days ago he started experiencing a boot problem. Would get through the startup and blue screen, but hung on a solid black screen every time. Disk was bootable in Safe Mode. I was able to use a command line to get to system restore and restored to an earlier date. After that I could boot, but I was still getting a lot of hangs and freezes, so I decide to go through the Majorgeeks Malware removal guide. In following all the procedures I could run all of the scans as outlined, except for malewarebytes, which kept freezing during the removal phase, and I'm not sure if anything was actually removed.