Make sure you install the Active Directory Domain Services server role on the Windows Server® 2008 R2-based computer you want to designate as the new domain controller.
On that computer, click Start, click Run, type dcpromo /adv, and press ENTER.
On the initial page of the Active Directory Domain Services Installation Wizard, make sure you select the Use advanced mode installation check box.
Step through the wizard until you are on the Choose a Deployment Configuration page.
Click Existing forest, and then click Add a domain controller to an existing domain.
On the Network Credentials page, specify the account credentials you want to use.
Step through the wizard until you are on the Install from Media page.
Click Replicate data from media at the following location, and then specify the location to which you extracted the backup in Step 1: Create and extract a backup.
Step through the wizard to complete the domain controller creation operation.
This section describes how to create a Windows Server® 2012 or higher domain controller from a backup by using the Install from Media (IFM) feature of Windows and the Extract Wizard.
To create a domain controller, complete these steps:
Create a backup of a Windows Server® 2012-based or higher domain controller's Active Directory®.
To create a backup, you can use the Backup Wizard.
Start the Extract Wizard and follow the steps in the wizard.
On the Backup Selection page, select the backup you created in step 1 of this procedure.
On the Folder Selection page, specify the path to the folder where you want to place the extracted backup files.
Follow the steps in the wizard to complete the domain controller creation extract operation.
On the Windows Server® 2012-based or higher computer you want to promote to a domain controller, use Server Manager to install the Active Directory Domain Services (AD DS) role: in Server Manager, on the Manage menu, click Add Roles and Features, and then follow the steps in the wizard to install the AD DS role.
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