Failed Norton install that has happened during the installation or an upgrade process to a newer version.
Another antivirus or security product already being installed onto a computer.
To fix the problem caused by the failed Norton installation, use the Norton Removal Tool.
To fix the problem caused by another security program, uninstall any non-Norton antivirus/security software that appears on the list under Installed Programs in your Control Panel.
Norton also recommends checking if your graphic adapter driver needs an update. For more information about Norton Antivirus Just visit norton setup.