I do believe that my pc was already infected before installing Kapersky Int. Sec. Ste 2009, and I'm wondering if I should reformat to start out fresh or not. I clicked on a pop-up from microsoft concerning the validation tool that said that I needed to install it, which would have been like the 3rd or 4th time of installing it. I was told by a friend of mine that I shouldn't have done that because it was a virus. I called Microsoft and they told me that the validation tool was no longer going to be a part of the auto updates so I was perfectly fine. Then my friend said that she got an update for it in her autoupdates. So I am very confused. Since then, I have purchased the new 2009 ste by Kapersky and installed it, which told me that I had no infections. But yet my pc runs very slow at times, even with the 10 mb of speed via my cable company. I am just not sure what to do at this point. I reformatted my partners pc, which runs vista because of this, but still haven't done mine. His isn't connected to the internet yet after the reformatting because I don't dare put him on, we share a linksys router, and my pc is the main one. and I don't want him catching anything from mine. Please advise, also if this isn't in the right spot go ahead and move it. I really wasn't sure where to put it.