I Hate Norton anything it is Bloated and heavy and can slow your machine by up to 30 %
I use this tool to get rid of any traces it leaves behind
uninstall norton the normal way through add and remove in control panel
reboot then get the norton removal tool and run it
http://www.techspot.com/downloadget.php?id=1437&file=1&evp=914269e0c288e32 f286d8cabee1d573e
if you cant find it at this link google "symnrt.exe"
Go NOD32