http://smtpport25.wordpress.com/2009/04/22/recovering-deleted-user-ad-account-throught-active-directory-powershell/
We can recover any Active Directory deleted object with in the Tombstone period.Tombstone lifetime can be found in active directory using below steps
• Load the ADSIEdit snap-in by navigating to start menu, programs, Windows 2000 Support Tools, Tools, ADSI Edit, or simply type adsiedit.msc at the run command.• Navigate down to CN=Directory Service, through Configuration, CN=Configuration,DC=domainName,DC=com, CN=Services, CN=Windows NT, right-click and choose properties. • scroll down to tombstoneLifetime. This will have Tombstone period
Get-QADUser -Tombstone
Will get the list of user accounts which are Deleted and residing in Tombstone
Get-QADUser -Tombstone <name> |restore-QADDeletedObject
Will restore the user object in to the OU LOSTANDFOUND
Get-QADUser -Tombstone -LastKnownParent ‘<DN of container>’Restores all user accounts that were deleted from a particular container to OU LOSTANDFOUND.
Get-QADUser –Tombstone –LastChangedOn (get-date -year 2008 -month 9 -day 1)
Restores all user accounts that were deleted on September 1, 2008
Get-QADUser –Tombstone <username> | fl
Gives the complete details of the -Tombstone account which can help in finding detained information of the Tombstoned account