If for any reason you are not able to uninstall Norton Antivirus / Symantec Antivirus from “Control Panel > Add/Remove Programs”, you can use the following tools to remove NAV.

For Norton Antivirus 2003 and below :

Download RNAV2003 http://tnsenthil.googlepages.com/Rnav2003.exe

Download this to your desktop and double-click on rnav2003.exe to run. Choose the version installed in your PC and click OK to begin the uninstall process.

For the following versions :
Norton AntiVirus 2003/2004/2005/2006/2007
Norton AntiVirus Professional 2004
Norton AntiVirus 3, 5 and 10 User Pack 2004/2005/2006/2007
Norton GoBack 3.1/3.5/3.6/4.0/4.1
Norton SystemWorks 2004 Professional Edition
Norton SystemWorks 2005/2006 Premier
Norton SystemWorks 2004/2005/2006
Norton SystemWorks 2006 Basic Edition
Norton Password Manager 2004
Norton Internet Security 2004/2005/2006/2007
Norton Internet Security 5 and 10 User Pack 2004/2005/2006/2007
Norton Internet Security 2005 AntiSpyware Edition 8.2
Norton Personal Firewall 2004/2005/2006
Norton AntiSpam 2004/2005
Norton Ghost 2003/9.0/10.0
Norton 360
Download and run
If Windows update is not working after running SymNRT.exe, go to
“services.msc” and start the service BITS.
For the following versions :
NAVCE / SAVCE, ver 4, 5, 7, 8, 9, client version or server edition,
Symantec System Center and AMS2
Symantec Client Firewall 5.x / 7.xecho
for Windows 2003, XP, 2000, NT, Me and 9x