Restoring AD DS after reinstalling the operating system
If you reinstall the operating system, you can restore AD DS in one of the following ways:
- Use Dcpromo to reinstall AD DS and allow replication from another, healthy domain controller in the domain to update the domain controller.
- Restore AD DS from backup (nonauthoritative restore). Then, allow replication from another, healthy domain controller in the domain to update the domain controller. This method requires less replication than reinstalling AD DS.
- Install AD DS from installation media. This method, called install from media (IFM), requires that you have created installation media that can be used to install AD DS.
