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Domain controller promotion process shows the Windows Server Technical Preview option in the Domain and Forest functional level list

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This article provides a resolution to an issue where Domain controller promotion process shows "Windows Server Technical Preview" in the Domain and Forest functional level list.

Applies to:   Windows Server 2016
Original KB number:   3202325

Symptoms

Consider the following scenario:

  • You have a computer that's running Windows Server 2016.
  • You install the Active Directory Domain Service (AD DS) role.
  • After the role is installed, you run the domain controller (DC) promotion process on the server.

However, on the second page of the DC promotion Wizard, you notice that both the Forest and Domain functional levels show an incorrect version of Windows, as in the following screenshot:

Domain Controller Options page shows wrong Windows version.

You expect the DC Promotion Wizard to show Windows Server 2016 instead of Windows Server Technical Preview.

Note

The Windows Server 2016 Domain and Forest functional levels are not affected functionally.

Cause

This issue occurs because the display string was not updated in the Forest and Domain functional levels before the release of Windows Server 2016.

Resolution

To resolve this issue, apply the latest cumulative update for Windows Server 2016 from Windows Update before you promote a computer to a domain controller.