My PC runs WIN 7 Home Premium, 2 gigs RAM. It runs fine until logoff or switch user. Then freezes during next logon, all the time. I've put in the exclusions in your "Common Questions, Issues and Solutions", but this did not fix the freeze problem. I wanted to rule out AVAST being the problen, so I uninstalled AVAST, installed AVIRA, put in the exclusions, but the freeze still occurs. If I disable MBAM with MSCONFIG and reboot, the problem goes away. GEEKS-TO-GO has concluded that MB Pro is incompatible with active virus scanning. Any help with be appreciated. Thank you.