...computer.When I click internet explore the page pops up alerting me of the vir

You actually have malicious adware (madware) on your system. These programs make you think something is wrong with your system and then point you to their website so you can buy a program to protect you. All they really do is add more madware to your system.run several spyware removal apps, reboot, then run them again. This should get rid of your problem. Try these:SpybotAd-awareA-squaredBacklight rootkit scannerAVG antivirus

And while your at it get Firefox,a lot safer than IE 6 or 7. http://www.download.com/

Sounds like spyware/adware try some of these free antispywarehttp://www.basicspywaretips.com/spywareremovaltool.html

Spyware/Adware - is computer software that collects personal information about users without their informed consent. To know more about how spyware attaches itself to computers and to learn how to combat them. Check out http://sumiram2006.googlepages.com/combatproblems

Try running your antivirus program in soft mode, then download Adaware SE, Spybot, free version of a-square for malware...and Microsoft Windows Defender...you have a malicious type of spyware there.