Similar problem here. There appears to be a serious conflict between Malwarebytes and the McAfee Security Center (the McAfee software came with my AT&T Internet service, and it is also called the "AT&T Security Suite"). I am using the Malwarebytes trial period, so it is actively running. Every time I boot my laptop it hangs for a long time, then the red Windows "shield" that indicates a security problem appears in the system tray, and then a Windows balloon pops up with a message that reads something like this: "Your computer might be at risk. McAfee Antivirus protection is turned off." After about 30 seconds, the red warning shield disappears and everything is back to normal, and that's if I am lucky. Sometimes the laptop hangs for several minutes, during which time the display is frozen even though I can move the mouse. Sometimes I simply have to hard boot the laptop. I read the FAQ. I added exceptions to the McAfee firewall for mbamservice.exe and mbamgui.exe (mbam.exe was already on the list), but I do not see anyway at all to put those there programs (or any programs for that matter) on a virus scan exclusion list. I looked at the FAQ, but the AT&T Security Suite (by McAfee) is different from McAfee VirusScan Enterprise. Can someone give me some advice on how to resolve this problem?