You have a need to restore a Domain Controller or Active Directory Server.
A Domain Controller is not working correctly and you need to restore it.
Before performing a vRanger restore of a Domain Controller please take a look at the following Microsoft link to see if a vRanger restore is required.
If a vRanger restore of the Domain Controller is required be aware that additional steps after the vRanger restore will need to be performed to recover a Domain Controller. The Ntdsutil tool will need to be used to complete the recovery of the Domain Controller. Please take a look at the following Microsoft link about how to use the Ntdsutil tool.