[Troubleshooting Domain Controller Deployment | Microsoft Learn
On the Results page, verify that the installation succeeded, and click Promote this server to a domain controller to start the Active Directory Domain Services. Domain controller promotion and demotion always returns a code at the end of operation and unlike most programs, do not return zero for success.
Windows server 2016 standard promote to domain controller free.Add Windows Server 2016 Domain Controller to Existing Domain
Paths The next screen allows you to modify the Paths for your domain controller.