How to install Unified Agent on Windows machines without requiring a user reboot
Article ID: 168784
Web Security Service - WSS
Although Unified Agent is not fully operational on Windows devices until after the device is rebooted, you can still install Unified Agent in the background without user intervention.
Run the following command for both 32-bit and 64-bit versions of Windows:
msiexec /norestart /i bcua64-setup.msi cm_url=https://<Client_Manager_IP>:8084 /quiet
The syntax assumes that you are running the command in the same context where the .msi file is located.