Active Directory Recycle Bin is one of new feature introduced in Windows Server 2008 R2. Now, in Windows Server 2012, it gets more better with a GUI.
You could restore the accidental deleted users or objects easily. It helps to minimize the AD Service downtime. In Windows Server 2003 and Windows Server 2008 AD DS, there are ways to restore deleted objects such as from backup, DSRM via ntdsutil authoritative restore and another third party software i.e ADRestore.
How to perform the Active Directory Recycle Bin?
The forest functional level of your Active Directory Service should be Windows Server 2008 R2 or above. This can be done on Active Directory Domains and Trusts.
Enable the AD Recycle Bin by using Windows PowerShell. By default, AD Recycle Bin is disabled.
try to delete the target user in Active Directory Users and Computers as example below
step 4: Open Active Directory Administrative Center.
step 5: On action pane, double click “Deleted Objects” Container. You will see the list of users that have been deleted.
step 6: To restore the deleted users, right-click the user as example below:
then, select which Organizational Unit you want to place the user and click OK.
To verify the user has been restored, check the user the respective OU that is been selected.