Specify Permission Policy Default Server for Quick Access Toolbar
Supported on: At least Windows Server 2008 R2 or Windows 7
Registry
HKCU
software\policies\microsoft\office\16.0\common\drm Options
defaultserver text Description
This policy setting specifies the RMS server Office uses by default. If you enable this policy setting, Office uses the server you specify as the default RMS server. If you disable or do not configure this policy setting, Office chooses the default RMS server.