RESTORE DELETED OBJECTS IN ACTIVE DIRECTORY
In Active Directory, when someone flags an object for deletion, Windows
marks it with an indicator called a tombstone. The process doesn't
actually delete the object from the AD database; the object just lives
on in this tombstoned state.
But let's say someone accidentally deleted the wrong object. What
do you do then? You can still restore the deleted object. Download
Sysinternals' free AdRestore utility from its Web site.
To view a list of objects available for restoration, execute AdRestore
without any parameters, type:
To prompt to restore a found object, execute AdRestore with the -r
Afterward, you may need to start Active Directory Users And Computers
and enable the user account that you restored.