Follow these steps to install the Active Directory Domain Services role:
- Open Server Manager ( servermanager.exe).
- In the gray top bar of Server Manager, click Manage.
- Select Add Roles and Features from the menu.
- The Before you begin screen appears, as shown in the following screenshot:
- On the Before you begin screen, click Next >.
- On the Select installation type screen, select Role-based or feature-based installation.
- Click Next >.
- On the Select destination server screen, select the local Windows Server installation from the server pool list, select the remote Windows Server installation ...