GPA enables you to remotely refresh the group policy settings of all computers in an OU from a single GPA console running Windows Server 2012/2012 R2 or Windows 8/8.1.
To initiate the update you must have the following permissions:
Generate resultant set of policy (logging)
Generate resultant set of policy (planning)
The following groups have the permissions necessary to initiate a group policy update:
SYSTEM
Domain admins
Enterprise admins
Administrators
To start a remote group policy update:
Log on to a GPA Console computer with an account that has permissions to starts remote GPO updates.
Start the GPA Console in the Group Policy Administrator program group.
In the left pane, expand GP Explorer and right-click the OU or GPO that you want to receive the update.
Select Group Policy Update.