I pulled the hard drive out of my Windows 7 desktop and plugged it into a gadget that lets you use it as any ordinary external drive. I plugged that into my Mac and ran Symantec which deleted a virus (sorry, don't know which one). Then I started the Windows XP running in Parallels that is installed on my Mac. Using XP I ran Malwarebytes on the external drive containing my Windows 7. That took around 25 hours. That deleted 37 things, mostly Registry Keys, none that actually said "virus." Then a quick scan using both Windows XP Malwarebytes and Mac Symantec showed no problems so I plugged the drive back into the desktop and started it up and it immediately has virus-like problems. So I've pulled it out again and am starting over. It seems that starting Windows 7 also re-created a virus. Any help is appreciated.