I have always hated unistalling and reinstalling antivirus and firewall programs especially norton. Even after an uninstall, norton will leave behind a whole bunch of junk. If you have the time and the patience i definitely would recommend yout o reinstall the OS and then install the new antivirus software. It wont just help with Norton's junk but it'll be a completely clean install and ur system will feel better. Thats what i do once a year, reinstall the OS and grab the latest version of the software.