If this is a VM, then you can use the snapshot feature to roll back. If this is a physical appliance, you can back up the configuration file via the GUI, there isn't a mechanism included to take a full disk snapshot that you can subsequently roll back to. Any 3rd party solution like Acronis, would be something that McAfee wouldn't troubleshoot if there was a problem. It also hasn't been through any sort of QA testing. It is a use at your own risk situation.