You can uninstall your Antivirus via Add or remove programs, but if that doesn't work then you may want to use cleanwipe or Nonav to thoroughly uninstall your SAV or NAV. You can refer to this post: http://www.symantec.com/connect/forums/where-can-i-get-copy-cleanwipe-sep-11x-mr4 http://www.symantec.com/connect/forums/can-i-use-symantecs-cleanwipe-utility-uninstall-sep http://www.symantec.com/connect/forums/cleanwipe Hope this resolve you issue.