Norton removal tool will not remove Corporate or Enterprise Editions. Also Cleanwipe needs to be used with proper guidance as incorrect usage it may result in loss of network connectivity. I am not sure about NoNav either.
Better way is to perform a manual uninstall.
> Stop the Symantec services ( Start > Run > Services.msc)
> Download the Windows Installer CleanUp utility from
http://support.microsoft.com/default.aspx?scid=kb;en-us;290301
> Look for any entry which says Norton, Symantec, ccApp, ccCommon, SPBBC, LiveUpdate, etc and remove them.
> Restart the computer.
> Backup the registry & then remove Symantec related folders, if they are still present.
e.g., HKEY_LOCAL_MACHINE\Software\Symantec
HKEY_CLASSES_ROOT\Software\Symantec
> Then try to delete the Symantec folders in the C: drive if they are present (drive where you have the old Norton/Symantec programs were installed)
e.g., C:\Program Files\Symantec
C:\Program Files\Common Files\Symantec Shared
C:\Documents and Settings\All Users\Application Data\Symantec (Application Data folder will be hidden)
> If you have difficulty in removing folders, try in safe mode.
> Restart the computer & then try installing Symantec Endpoint Protection.
> This has worked in most of the cases.
Regards,
Mac