Hello,
Check command on 64 bit OS
%ProgramFiles(x86)%\Symantec\Symantec Endpoint Protection\smc.exe" -p [Password] -stop
Exam:
%ProgramFiles(x86)%\Symantec\Symantec Endpoint Protection\smc.exe" -p 123 -stop
In 32 BIt
"%programfiles%\Symantec\Symantec Endpoint Protection\smc.exe" -p [Password] -stop
Exam..
"%programfiles%\Symantec\Symantec Endpoint Protection\smc.exe" -p 123 -stop