How do I get rid of a virus on my laptop?

Yesterday, my laptop bombed out on me! It keeps bringing up XP Anti spyware 2010-now apparently this is the virus itself? I can not log onto the internet and can not load a virus protect which I have on a USB - the system is just totally going mad, saying stealth warnings and hi jack blah blah ...help im... show more Yesterday, my laptop bombed out on me! It keeps bringing up XP Anti spyware 2010-now apparently this is the virus itself? I can not log onto the internet and can not load a virus protect which I have on a USB - the system is just totally going mad, saying stealth warnings and hi jack blah blah ...help im c-l-u-e-l-e-s-s!!!
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