A virus warning keeps popping up on my computer trying to get me to buy it. I cleaned the virus but this keep?

Restart PC in safe mode by tapping F-8 key, choosing "Safe Mode with Networking" from menu (black screen). Download, update, run Malwarebytes. When back in normal mode, download, update, run SuperAntiSpyware and next run ccleaner and restart PC...

It's malware not a virus. Try this Malware link on the forum if you have malware problems. http://suggestions.yahoo.com/detail/?prop=answers&fid=131217 gives links to free programmes and help. You can also ask for help there from the regulars. Alternatively this site gives info on many current malware threatshttp://bestfree-spyware-virus-trojan-protec.blogspot.com/

The first thing you want to do is install and update malwarebytes and perform a scan. http://www.malwarebytes.org/ Alternative: Spybot S & D http://www.safer-networking.org/en/index.html After that download the free version of Avast! Antivirus and install it. http://www.avast.com/ It will ask if you want to schedule a boot time scan. Say yes and reboot. After that leave avast on your computer to protect you. If you cannot download try going into safe mode and trying then. Or download them on another computer and burn them to a disc or put them on a flash drive.