I've tried everything that I could think of (or research) to fix the constantly-rebooting problem and nothing seems to work, so what I'm currently doing is downloading to a flash drive all her files and "game data" and will then use the "nuclear option" of the restore-to-factory disk (which will wipe out all the data on the HDs). I'm hoping that in doing that I'll be "killing two birds with one stone", getting the system to a point where it will fucking BOOT and eradicating this damn virus.
This was not a "happy computer weekend", let me tell you..