Question/Issue:
You want to know how to uninstall Symantec Antivirus, Symantec Endpoint Protection,or Symantec Endpoint Protection Manager.. Or you have already removed the program from Add/Remove programs and that failed.


Solution:

· Go to Add/Remove Programs and remove the program
· Reboot
· Try install
· If that fails, follow the manual removal process.
· Try the install again
· If that fails, run the cleanwipe utility. As a precaution, have a backup of the OS before using utility (This utility is provided by Symantec Technical Support)
· Run the Microsoft Windows cleanup utility. As precaution have a backup of the OS before using utility (This utility is available from Microsoft)
· Install new version

Please follow the link provided for the manual removal instructions in the following document:

Title: How to manually uninstall Symantec Endpoint Protection client from Windows 2000, XP and 2003, 32-bit Editions
Solution ID: 2007073018014248
Document URL:http://service1.symantec.com/SUPPORT/ent-security.nsf/docid/2007073018014248

Title: 'Manual uninstallation documents for Symantec Client Security products'
Solution ID: 2002031914291648
Document URL: http://service1.symantec.com/SUPPORT/ent-security.nsf/docid/2002031914291648

Title: 'How to manually uninstall Symantec Endpoint Protection Manager 11.0'
Document ID: 2007101615023748
> Web URL: http://service1.symantec.com/SUPPORT/ent-security.nsf/docid/2007101615023748?Open&seg=ent

The Windows Installer CleanUp Utility
http://support.microsoft.com/default.aspx?scid=kb;en-us;290301

Document ID: 2008042314291548
Last Modified: 04/23/2009
Date Created: 04/23/2008
Operating System(s): Windows 2000 Professional, Windows 2000 Server/Advanced Server, Windows XP Home Edition, Windows XP Professional Edition, Windows XP Tablet PC Edition, Windows Server 2003 Web/Standard/Enterprise/Datacenter Edition, Windows XP Professional x64 Edition, Windows Server 2003 x64 Edition, Windows 2000, Windows XP Home, Windows XP Tablet PC, Windows XP 64-Bit Edition 2003, Windows Server 2003 32-bit Edition, Windows Server 2003 64-bit Edition, Windows XP Media Center Edition 2005, Windows 2000 Server
Product(s): Endpoint Protection 11, Symantec AntiVirus 10.1, Symantec AntiVirus 10.2, Symantec AntiVirus Corporate Edition 10.0, Symantec AntiVirus Corporate Edition 8.0, Symantec AntiVirus Corporate Edition 9.0, Symantec Client Firewall 8.0, Symantec Client Firewall 8.7, Symantec Client Security 3.0, Symantec Client Security 3.1
Release(s): Endpoint Protection 11 [All Releases], SAV 10.0 [All Releases], SAV 8.0 [All Releases], SAV 9.0 [All Releases], Symantec Client Firewall 8.7 [All Releases], Symantec Client Firewall 8.x [All versions], Symantec Client Security 3.1 [All Releases], Symantec Client Security 3.x [All versions]