The ARP crew have up a pretty decent guide on what to do if your PC ever gets infected with a little spy-/malware, & how to keep it from ever getting into your system again.

"Is your PC behaving strangely? Popping up banners all the time? Getting redirected to unknown websites? It's very likely your PC has been hit by spyware! But fret not. We have just the guide for you! Join TEB as he shows you how to get rid of spyware and stay clean!"