A nonauthoritative restore is the default method for

restoring Active Directory. To perform a nonauthoritative

restore, you must be able to start the domain controller in

Directory Services Restore Mode. After you restore the

domain controller from backup, replication partners use the

standard replication protocols to update Active Directory

and associated information on the restored domain

controller.

An authoritative restore brings a domain or a container back

to the state it was in at the time of backup and overwrites

all changes made since the backup. If you do not want to

replicate the changes that have been made subsequent to the

last backup operation, you must perform an authoritative

restore. In this one needs to stop the inbound replication

first before performing the An authoritative restore.