Moved to Malware Discussions > Home User Assistance.
These fake anitmalware scams are a nuisance and unfortunately they get by all the major antivirus applications because of the way they work apparently.
Antivirus 2010 best cure is here: http://www.bleepingcomputer.com/virus-removal/remove-antivirus-2010
AntiVirus 2011 here: http://www.bleepingcomputer.com/virus-removal/remove-antivirus-system-2011
But the best cure of all is to be extremely careful what one downloads, clicks on and what we share with each other and make sure Windows is constantly up to date.
Also make sure you have a good one or two anti-malware applications on hand to supplement your antivirus software. Keep it updated then it can always be run when the need arises.