How can i uninstall xp internet security 2010 VIRUS!? For some reason it managed to get itself into my compute?

How can i uninstall xp internet security 2010 VIRUS!?
For some reason it managed to get itself into my computer. Same virus killed my computer in early 2009 and had to pay a lot to get it fixed.
I’ve already restored my computer back to a month ago but the stupid thing is still there. Does anyone kno how i can remove it?

Where can I find free internet security?

My trial of Norton is up today, and I’ve already gone through the AVG trial and the McAfee. I need a legit internet security that is free, because im broke. Any suggestions?

What is the best Anti-virus/Internet Security in the market?

I am a Computer Repair individual trying to provide my customers the best Anti-Virus/Internet Security in the market today. But, I am having difficulties due to the fact that is a lot of security providers. I would like your thoughts on this issue.

How do I uninstall the old version of Ad Aware so i can install the new internet security?

I have completely uninstalled all old versions of Ad Aware. I have cleaned my registry with multiple programs but it has not helped. Whenever I go to install the new internet security utility it tells me I have a fatal error and I need to manually uninstall the old version I have installed even though I already have. How can I fix this problem?