Norton Symantec only detects but does not remove "System Guard 2009". You have to remove and re-install Symantec to get rid of the notification and mandatory restart that Syamantec wants to do.
I had to use Sbybot to get rid of "System Guard 2009", but I still had to do the above re-instal procedure.
Symantec should fix this to be a user friendly application.
I have Symantec 2009 version 10.1.5