The Active Directory® directory service was unable to allocate a new domain controller GUID, which is necessary because this domain controller was restored from backup media. As a result, this domain controller will not be able to start up in normal mode.

Sample Event:

Internal error: Active Directory was unable to allocate a new domain controller GUID, which is necessary since this domain controller was restored from backup media. As a result, this domain controller will not be able to start up in normal mode.

Additional Data

Error value: %1 %2

Reinstall the operating system, and either attempt to restore the domain controller from backup media or promote the machine to be a new domain controller.

For more information, see:

• Microsoft Help and Support for Microsoft Windows Server 2008 and above

• Microsoft Knowledge Base