Virus - XP Internet Security 2011

Thanks in advance for your assistance. My desktop appears to have been infected by a virus. A program called XP Internet Security 2011 has been installed on my computer, and it keeps trying to scan. I stop it each time.

I tried to find information on this, and am advised that this is a virus. This computer has been used by teenagers, and who knows what may have been downloaded. I also searched your forum, but could not find a specific thread on this.

I would greatly appreciate any assistance you can offer to remove this and any other malware that has found its way on to my PC.

My operating software is Windows XP.

Thank you.

 

Fetz, please post in Malware and Virus Removal after reading this