Use ADRA to restore individual objects from Active Directory.
To restore individual objects from an Active Directory backup
On the navigation bar, click the down arrow next to Restore.
In the View by Resource pane, double-click a backup set that contains the most recent System State backup.
If you want to restore Active Directory objects from a previous backup, select the appropriate backup set.
In the Results pane, select the appropriate object or objects.
Click Run Now to start the restore job or select other restore options from the Properties pane.
Any Active Directory or ADAM/AD LDS object or property that is selected for restore will overwrite existing objects and properties, even if you selected Skip if file exists or Skip if existing file is more recent on the General Restore Job Properties dialog box.
If you restored a a deleted user object, use the Microsoft Active Directory Users and Computers application to reset the object's user password and re-enable the object's user account. If you restored a computer object, you must reset the account for it.
More Information
Resetting the Active Directory computer object account
Restoring individual objects from an ADAM/AD LDS backup
About recreating purged Active Directory and ADAM/AD LDS objects