I downloaded the free trial, and it found lots of stuff on my computer. Had to pay to get is off, but everyone has to make a buck and I felt the $40 was worth it. I have had the product about 3 months now, and no problems. Really it is more a malware remover, very easy to use and better for the non-technical user, but it did make my system more stable (donesnt crash anymore) and I think it boots faster. Anyways it is a good program and easy to read site.