I purchased on line PC Anti spyware 2010 in for amount of $91.45 (US dollars). Installed product and my computer (Dell, Wondows XP) experienced excessive ad pop-ups, slowed to a crawl and shut it down. I was literally unable to restart. Took computer to Best Buy Geeg Squad. They had difficuly starting it and after an hour of diagnosis said the problem was adware, spywear and monitering viruses. This product which was advertised to eliminate spyware; it did not! And, I believe it installed the adware because I had no problem with adware prior... read full review »