Microsoft KB Archive/253848

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Running Windows 2000 Setup from Floppy Disks or CD-ROM Does Not Upgrade Windows NT4.0 or Windows 98


The information in this article applies to:

  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Professional
  • Microsoft Windows 2000 Server


When you boot your Microsoft Windows NT 4.0-based or Microsoft Windows 98-based computer from the Windows 2000 CD-ROM or floppy disks to run Windows 2000 Setup, you receive the following message:

You chose to install Windows 2000 on a partition that contains another operating system. Installing Windows 2000 on this partition might cause the operating system to function improperly.

This message indicates that Setup did not recognize the operating system you are attempting to upgrade. If you choose to continue, a new installation of Windows 2000 is installed, instead of an upgrade to your current operating system on the selected partition. Installing Windows 2000 on this partition might cause the other operating system to function improperly.


Windows 2000 does not support upgrading Windows 98 or Windows NT 4.0 by booting from the Windows 2000 Setup floppy disks or CD-ROM.


To upgrade, boot your installed operating system and then run Winnt32.exe.


This behavior is by design.

Additional query words:

Keywords : kbsetup KBW2KHOME
Issue type : kbprb
Technology : kbwin2000AdvServ kbwin2000AdvServSearch kbwin2000Serv kbwin2000ServSearch kbwin2000Search kbwin2000ProSearch kbwin2000Pro kbWinAdvServSearch

Last Reviewed: October 24, 2000
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