Norton Antivirus installer keeps running

My Norton Antivirus installer keeps running, even after I've removed everything with the Norton removal tool, when I run it and install Norton antivirus, it will continue to start up after I've rebooted with the message "another install because another variant of Norton antivirus is installed"  I deleted "everything" and installed Norton 360 premere.

After installing that, the Norton Antivirus Installer STILL starts up, telling me that I have already have Norton 360, and don't need to install in.  This happens everytime I reboot the computer.  (windows xp)

I'm at a loss as to how to stop this installer from running, and I have used the Norton removal tool various times.

Any help would be appreciated!!

 

Johnny Ellison.