Creating the GPO to add local administrators
On the domain controller, create a group of users
Members of this group will be configured as administrators of every computer in the domain.
On the domain controller, open the group policy management tool.
Create a new group policyIn our example, the new GPO was named: LOCAL ADMINISTRATORS.
On the Group Policy Management screen, expand the folder named Group Policy Objects.
Right-click your new Group Policy Object and select the Edit option
On the group policy editor screen, expand the Computer configuration folder and locate the following item.
Right-click on restricted groups and select the option to add a group.
On the bottom part of the screen, click on the Add button.
Enter the local administrator group name
In our example, members os the Active Directory group named ADMIN-SECTION will be automatically configured as members of the local administrator group.
To save the group policy configuration, you need to close the Group Policy editor.
Congratulations! You have finished the GPO creation.
- Applying the GPO to configure local administrators
On the Group policy management screen, you need to right-click the Organizational Unit desired and select the option to link an existent GPO.
In our example, we are going to link the group policy named LOCAL ADMINISTRATORS to the root of the domain.
After applying the GPO you need to wait for 10 or 20 minutes.
During this time the GPO will be replicated to other domain controllers.
To test the configuration, verify the members of the local administrator group on a remote computer.