My computer runs slow, will freeze up, says "not responding", and will blue screen (kernel memory dump) maybe once every few weeks or so. I did clean out other unwanted items last week and have seen a bit of a speed up. I'm just concerned about the MBR thing that the rootkit scan found. I looked at the report and it still keeps saying the same info as the first report that I posted. Here's another one, hope it is something that will help.