There is a new feature available in Active Directory Administrative Center (ADAC) in the Windows Server 2016 that allows you restore deleted AD objects from the Recycle Bin (although it could be activated from Windows server 2008 R2 using Powershell). It allows you to enable it at the Domain or Forest level. The only caveat is once it is enabled, it cannot be disabled. The default lifetime for a deleted object to remain in the AD Recycle Bin is 180 days.
To enable the feature using Powershell:
Enable-ADOptionalFeature –Identity ‘Recycle Bin Feature’ –Scope ForestOrConfigurationSet –Target ‘domain.com’ –Server DC1
To enable the feature in Active Directory Administrative Center:
Go to Server Manager –> Tools –> Active Directory Administrative Center
Highlight the domain or forest on the left pane and then under the Task pane on the right under the domain, select Enable Recycle Bin.
You will get the warning that once it is enabled it cannot be disabled, select Ok.
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