AD domain controller upgrade requirements
Microsoft's edit ·
Microsoft's commit message in MicrosoftDocs/windowsserverdocs · commit d1f9ff7 · +3 −3 lines · also on GitHub
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|Install a new forest.|Local admin on the target server|
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|Install a new domain in an existing forest.|Enterprise admins|
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−|Install an additional DC in an existing domain.|Domain admins|
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+|Install another DC in an existing domain.|Domain admins|
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|Run `adprep /forestprep`.|Schema admins, enterprise admins, and domain admins|
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|Run `adprep /domainprep`.|Domain admins|
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|Run `adprep /domainprep /gpprep.`|Domain admins|
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## Functional-level features and requirements
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−Windows Server 2019 or later requires a Windows Server 2008 forest functional level as a minimum. Windows Server 2016 requires a Windows Server 2003 forest functional level as a minimum. If the forest contains DCs running an older forest functional level than the operating system supports, the installation is blocked. Those DCs must be removed and the forest functional level raised to a version that's supported prior to adding newer Windows Server DCs to your forest. For more information about supported functional levels, see [Forest and domain functional levels](../active-directory-functional-levels.md).
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+Windows Server 2019 or later requires a Windows Server 2008 forest functional level as a minimum. Windows Server 2016 requires a Windows Server 2003 forest functional level as a minimum. If the forest contains DCs running an older forest functional level than the operating system supports, the installation is blocked. Those DCs must be removed and the forest functional level raised to a version that's supported before you add newer Windows Server DCs to your forest. For more information about supported functional levels, see [Forest and domain functional levels](../active-directory-functional-levels.md).
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> [!NOTE]
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> No new forest or domain functional levels have been added since Windows Server 2016. Later operating system versions can and should be used for domain controllers. They use Windows Server 2016 as the most recent functional levels.
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1. On the **Domain Controller options** screen, enter the **Directory Services Restore Mode (DSRM)** password and select **Next**.
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−1. For the remainder of the screens, select **Next**.
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+1. For the rest of the screens, select **Next**.
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1. On the **Prerequisite Check** screen, select **Install**. After the restart has completed, sign in again.
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1. On the earlier version of Windows Server, in **Server Manager**, under **Tools**, select **Active Directory Module for Windows PowerShell**.
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Microsoft's Markdown source from MicrosoftDocs/windowsserverdocs, © Microsoft Corporation, under CC BY 4.0. Changed lines with up to 3 unchanged lines around each; ChangeIntel kept this copy 9 Oct 23:52 UTC. The commit date is when the source changed, which can be hours or days before Learn published it.