This article was previously published under Q203141
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When you run Winnt32.exe to upgrade a Microsoft Windows 95-based or Microsoft Windows 98-based computer to Windows 2000, you may receive the following message:
Windows 2000 Setup does not support upgrading from Windows 98 (or Windows 95) to Microsoft Windows 2000 Server
You receive this message if you are trying to upgrade Windows 95 or Windows 98 to Windows 2000 Server, Advanced Server, or Datacenter server. Only Windows 2000 Professional supports upgrading from Windows 95 or Windows 98.
If you click OK when you receive the message listed above, Windows 2000 Setup begins. However, the option to upgrade to Windows 2000 is unavailable. Instead, Setup will install a "clean" copy of Windows 2000. A "clean" installation of Windows 2000 means either installing Windows 2000 on a blank hard disk, or installing Windows 2000 in a folder other than the folder in which an existing version of Windows is installed.
If you want to upgrade Windows 95 or Windows 98 to Windows 2000, you must upgrade to Windows 2000 Professional.