SEP Client Upgrade via Altiris SEP Integration Component - Question

I created a job to uninstall old AV and install latest version of SEP Client. The job gives an option to restart or not to restart after uninstalling old AV.  Now here is my question, we are running older 12.1.1 SEP Client and will upgrade to the latest client, is it ok to not reboot after uninstalling old sep before installing the latest sep client?