Have you opened a case with Symantec? I'm fairly sure the switches have changed from version to version.
From: [email protected] [mailto:[email protected]] On Behalf Of Rajan Hotmail Sent: Tuesday, May 06, 2014 12:46 PM To: [email protected] Subject: [mssms] Norton internet security uninstallation - Help !!! Dear Friends, I need to uninstall "Norton internet security" for 800+ PCs through SCCM, any uninstaller script or Batch file is available. I tried to uninstall via Norton_Removal_Tool.exe, but unable to find any silent switches for the same. Regards Rajan.

