Setup Cannot Find Previous Version of Windows NT

ID: Q134389

The information in this article applies to:

Microsoft Windows NT operating system version 3.1
Microsoft Windows NT Advanced Server version 3.1
Microsoft Windows NT Workstation versions 3.5, 3.51
Microsoft Windows NT Server versions 3.5, 3.51

SYMPTOMS

When you attempt to upgrade an exiting Windows NT installation to Windows NT 3.5 or 3.51, an error may appear stating that Windows NT Setup could not find an existing version of Windows NT. You can only exit Setup or install Windows NT into a new directory.

CAUSE

This problem occurs because Setup looks for SCSI instead of MULTI in the BOOT.INI file.

Setup fails to find standard Windows NT 3.1 installations that have SCSI in the BOOT.INI file, and fails to find Windows NT 3.5 installations where you have changed the MULTI references to SCSI in the BOOT.INI file.

WORKAROUND

To work around this problem, add a extra line in the BOOT.INI file that points to the install to be upgraded. Use MULTI instead of SCSI.

STATUS

Microsoft has confirmed this to be a problem in Windows NT versions 3.5 and 3.51 We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

Additional query words: prodnt

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