This policy setting allows you to manage whether run-once backups of a machine can be run or not.If you enable this policy setting machine administrator/backup operator cannot use Windows Server Backup to run non-scheduled run-once backups.If you disable or do not configure this policy setting there is no restriction on running run-once backups.
Policy path:
Windows Components\Backup\Server
Scope:
Machine
Supported on:
At least Windows Server 2008
Registry settings:
HKLM\Software\Policies\Microsoft\Windows\Backup\Server!NoRunNowBackup
Filename:
WindowsBackup.admx