If you are having trouble with spyware and adware (particularly AntiVir 2010 or it's variants) visit superantispyware.com and download their free version of SuperAntiSpyware, it is absolutley amazing! I use malwarebytes and found no infections but with superantispyware I found 149 infections and it got the AntiVir2010 which malwarebytes, spybot, and AVG didn't touch. I was happy it found the AntiVir2010(nasty adware), but was totally surprised by the other 148 items it found. It found trojans that the others absoultely missed. They have a version you can purchase that has a few extra bells and whistles but for the average user, the free version should suffice. The Wall Street Journal ranks the free version as the best out there and I agree after using it.