today, completely out of nowhere, antivirus vista popped up and started running a scan.. i don't even have windows vista. i have xp. and at the time, all i was doing was listening to music (not online). i don't know how this got on to my computer, or if it is even a legitimate program. i also can no longer seem to access my AVG antivirus program. i just want to delete this antivirus vista thing but it's not in my list of programs to change/uninstall. also, when it finished its scan, it said i had to buy antivirus vista for it to remove any viruses it had found, which makes me think i don't actually have the program.. please help!2 people need an answerI do too

That's a rogue security program that pretends to find infected files on your computer and tries to get you to pay for the program. Don't do it! To close its window, click red "X" in the title bar at the top of the window or press Alt-F4 on the keyboard. If you'd like to try to remove it yourself, download and run these programs: Microsoft Windows Malicious Software Removal Tool Malwarebytes' Anti-Malware For more detailed help, go to the malware removal forum at Aumha , see the spyware and malware removal guides at BleepingComputer.com , or call 1-866-PC Safety for Microsoft's free virus and spyware removal help. Boulder Computer Maven Microsoft Most Valuable Professional

For XP , I recommend you to log on to:http://onecare.live.com/site/en-us/default.htmand run full system scan and make sure you allow pop-up and active X and use internet explorer to browse there.If it fail try the website using safemode with networking:1)restart your PC and press F8 key continusly before Windows logo come up2)chose Safemode with networking3)try the website and run full scan in safemode