To add a license
- On the computer where the Defender Administration Console is installed, open the Active Directory Users and Computers tool (dsa.msc).
 - In the left pane (console tree), expand the appropriate domain node, and click to select the Defender container.
 - On the menu bar, select Defender | License.
 - On the License tab, click the Add License button.
 - In the dialog box that opens, enter the license key and site message provided to you by One Identity.
 - Click OK.