Returning to Win2000 Native Domain Functional Level from Win2003 Server Domain Functional Level

Discussion in 'Active Directory' started by Aleksandr, May 28, 2004.

  1. Aleksandr

    Aleksandr Guest


    I need to know if I can "demote" the Windows Server 2003 Domain Functional
    Level to Windows 2000 Native Domain Funcional Level. My situation is that I
    have serveral domain controllers with Windows 2000 and I need to rename my
    Active Directory domain name.

    For that I need to raise the Domain Level to "Windows Server 2003", but I
    need to return to Windows 2000 Native mode to support the Windows 2000
    Domain Controllers

    Aleksandr, May 28, 2004
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  2. Aleksandr

    Simon Geary Guest

    This cannot be done, the raising of the domain functional level is a one-way
    Simon Geary, May 28, 2004
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  3. You would need to reinstall AD to do so. This means that you need to
    demote all of your DCs, then re-dcpromo them with the new domain name
    and FL.

    Laura A. Robinson [MVP], May 28, 2004
  4. Aleksandr

    Lee Flight Guest

    The W2003 Domain Rename page is

    here's a snip from the Step-by-Step Guide to Implementing Domain Rename

    The domain rename operation is supported within an Active Directory forest
    and only if, all domain controllers in the forest are running Windows
    Server 2003 Standard Edition,
    Windows Server 2003 Enterprise Edition, or Windows Server 2003 Datacenter
    Edition, and
    the forest functionality has been raised to Windows Server 2003 or higher.

    So it's W2003 only. The W2003 Domain and Forest Functional level changes
    are irreversible.

    Lee Flight
    Lee Flight, May 28, 2004
  5. But that's not what the OP asked about. :)

    Laura A. Robinson [MVP], May 28, 2004
  6. Okay, I take it back. It kinda is what he asked about, in a weird way.

    Laura A. Robinson [MVP], May 28, 2004
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