Hello everyone.

I recently had the google redirect virus plus some other not so nice items that also prevented me from updating my AVG (gave me the cannot connect message)-- initially I was running with AVG antivirus and Windows Defender. This weekend I installed Ad-Aware 2008 and StopZilla (have since read a mix of stuff mostly bad re: this product), but after running scans and deleting infected items I am down to a fake security alert box popping up stating that I have a malicious Spyware.ISpynow running on my machine and then if I click on the enable button it takes me to a site where it wants me to download a rogue program. I am looking for some advice here on how to get rid of this fake alert and make sure my machine is clean. I am leaning towards doing a re-install of Windows XP, but was wondering if that is a 100% effective way to get rid of everything harmful OR if there is still a good way to make my PC clean without having to reinstall the OS. Thanks to anyone who takes the time out of their busy day to answer my questions.