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Suddenly,XP-Anti Virus 2011 is blocking access to Firefox how do I stop this from happening;Is this a valid MS product?

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I keep getting pop up wanting me to buy this program called XP-Anti Virus 2011.Every time I try to bring you up It gives me that message on your page. I reached you this time through a Adobe Reader up-grade.I also have the MS security shield in the tray,but nothing says Microsoft. Thank you for any help you can extend.

ED

I keep getting pop up wanting me to buy this program called XP-Anti Virus 2011.Every time I try to bring you up It gives me that message on your page. I reached you this time through a Adobe Reader up-grade.I also have the MS security shield in the tray,but nothing says Microsoft. Thank you for any help you can extend. ED

All Replies (2)

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XP Anti-virus is a rogue application, for details on it including how to remove it see http://www.precisesecurity.com/rogue/xp-anti-virus-2011/

The 2 applications it mentions to remove it, Malwarebytes and SuperAntiSpyware are considered by many to be amongst the best anti-malware applications.

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You may find that it is screwing up Internet Explorer, too - that happened to me on Saturday. You may have to download Malwarebytes' Anti-Malware - http://www.malwarebytes.org/mbam.php and SuperAntispyware - http://www.superantispyware.com/ on a different PC, and transfer them to a USB key so you can install them on the infected PC. Either of them should be able to get rid of it, but Malwarebytes had to be installed in my Admin account on WinXP, where Super Antispyware worked from the Limited account I use everyday.

I had older versions of those programs saved on my "tools" USB flash drive, so I didn't have to download them.