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ne common cause of resurrected objects is offline domain controllers. If a domain controller (DC) is offline for more than60 days, it will have a copy of the deleted object, which no other DC has. Since no other DC will have a record of the deleted object, it will be re-distributed across the domain. This problem can also occur if a DC is restored from a backup that is more than60 days old. The best way to prevent this is to make daily or weekly AD backups and never return a DC to the network before it has been updated.
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