There is an fix or program to uninstall Norton Security at the web site. Go to Symantec.com, read the instructions, download the program and see if it fixes your problem. I had that installed on a new computer. The only way I could get rid of it completely was to edit the registry and remove all entries. It can be a mess.
I had Nortons security 2003 tried to uninstall but pc crashed and all components could not be removed. Downloaded the trial veraion of Nortons Security 2004 fron their web page and tried to install it but get the following message "THE MSI MUST BE LAUNCHED THROUGH SETUP" tried to load my origianl software and it wont let me because it says I have a later version of anti virus that what it wants to install. So now I have neither software on.
Can any one help/advise please.