This article explains when and how to shut down your UEB appliance.
Typically, it is not necessary to shut down your UEB unless you need to reboot after installing an update. Although you can shut down the appliance through the hypervisor, Unitrends recommends shutting down from the user interface. Any jobs in progress when the system is shut down will fail. Scheduled jobs do not run while the system is shut down.
For instructions, see: