Restore the Organizational Unit in AD in Server 2008

1. Click Start, click Administrative Tools, right-click Active Directory Module for Windows PowerShell, and then click Run as administrator.
2. Restore the Finance_Department OU by running the following command at the Active Directory Module for Windows PowerShell prompt:
   Get-ADObject -ldapFilter:"(msDS-LastKnownRDN=Finance_Department)" –IncludeDeletedObjects | Restore-ADObject
3. Restore the user accounts Brian and Mary and the Admins OU (the direct children of the Finance_Department OU whose distinguished name was restored to OU=Finance_Department,DC=contoso,DC=com in the previous step) by running the following command at the Active Directory Module for Windows PowerShellprompt:
   Get-ADObject -SearchBase "CN=Deleted Objects,DC=contoso,DC=com" -Filter {lastKnownParent -eq "OU=Finance_Department,DC=contoso,DC=com"} -IncludeDeletedObjects | Restore-ADObject
4. Restore the user account Tom (the direct child of the Admins OU whose distinguished name was restored to OU=Admins,OU=Finance_Department,DC=contoso,DC=com in the previous step) by running the following command at the Active Directory Module for Windows PowerShell prompt:
   Get-ADObject -SearchBase "CN=Deleted Objects,DC=contoso,DC=com" -Filter {lastKnownParent -eq "OU=Admins,OU=Finance_Department,DC=contoso,DC=com"} -IncludeDeletedObjects | Restore-ADObject

For more information about the Get-ADObject and Restore-ADObject cmdlets, at the Active Directory Module for Windows PowerShell command prompt, type Get-Help Get-ADObject or Get-Help Restore-ADObject.