I need to uninstall all SAV 10.x using a GPO. I am 99% there but still hung up. GPO first runs .reg that removes the SAV uninstall password (works fine) then runs .cmd file

Code:
msiexec.exe /x{xxx-xxx-xxx}
When it hits this part, a window asking "are you sure..." with Yes and No buttons. I plan on running this as a startup script. I have added the /q but that doesn't work. Any ideas? Thank you