If you’ve been hit with XP Internet Security 2010, Antivirus Vista 2010, and Win 7 Antispyware 2010 and your computer rendered non functional, there are good instructions for removing XP Internet Security 2010, Antivirus Vista 2010, and Win 7 Antispyware 2010 from your computer at http://www.bleepingcomputer.com/virus-removal/remove-antivirus-vista-2010

Essentially it’s two steps:

Download and run this file

Download and run Malwarebytes