First timer. 2011 was installed on a lap top windows 7 home preminum, for three PC s. 2005 is on a desktop PC with Win XP. Do I have to delete Symantec 2005 to load Norton Internet Security AntiVirus 2011 as one of three PC s? Or won't it work?
Should I keep 2005 updated and forget NIS 2011 on the XP PC?