After suffering terrible problems with McAfee I replaced it a year ago with Microsoft Security Essentials. All was well. Recently I upgraded Flash, where it by default included McAfee Security Scan Plus. I thought this was a one time security scan, which seemed OK to me. I later noticed that MS Security Essentials was stuck in “Search” mode while downloading an update. Also, VMware’s Unity mode no longer seemed to work. Some searching yielded the default advice to remove conflicting virus scanner. I checked and discovered McAfee running in the background. I quickly uninstalled it and Security Essentials and VMware are now working correctly.
Today’s lesson: uninstall all McAfee products and never install their crappy software again.