To uninstall Norton or any software, usually you can go to Start > Control Panel> Add and Remove Programs. (This means go to the Start button, then to the Control Panel, then to Add and Remove Programs.) On Vista go to Start>Control Panel>Programs. Sometimes it takes awhile for a list of installed software to appear on your screen, but when it does, you can pick the program you want to uninstall. Often you’ll need to restart the computer to completely remove the unwanted program. Most legitimate programs will uninstall this way.
But if that doesn’t work and you are still having difficulty uninstalling Norton Antivirus or any of its products, you can go here and download the Norton Uninstall tool. Ms. Ducktoes has done this hundreds of times and it works well.