I have tried using this statement on my CLIENT Side:

I deployed SAV through ZENworks for Desktops by running the setup.exe
that came with SAV with the following commands:

SETUP.EXE /s /v"/qb RUNLIVEUPDATE=0" to install Symantec Anti-virus
v10.0, but I can not get it to be a silent unassisted install. Any ideas ?

It keeps coming up where you need to click next for installation. Taken
from cool solutions Open Call : Pushing out symantec Antivirus Corporate
Edition 10.0.