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Microsoft KB Archive/100741

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Knowledge Base

MS-DOS Setup Err Msg: Setup Cannot Install MS-DOS 6...

Article ID: 100741

Article Last Modified on 11/16/1999


  • Microsoft MS-DOS 6.0 Standard Edition
  • Microsoft MS-DOS 6.2 Standard Edition
  • Microsoft MS-DOS 6.21 Standard Edition
  • Microsoft MS-DOS 6.22 Standard Edition

This article was previously published under Q100741


If you have an original equipment manufacturer (OEM) version of MS-DOS that uses logical sectoring, you receive the following message if you start your computer with the MS-DOS 6 or 6.2 Upgrade Setup Disk 1 in drive A:

Setup cannot install MS-DOS 6 because there is no operation system on this computer.


This error message is displayed because MS-DOS Upgrade does not recognize your partitioning scheme.


To work around this problem:

  1. Restart (boot) your computer from the hard disk, your original OEM MS-DOS disk, or another floppy disk that boots your current version of MS-DOS.
  2. Run Setup from MS-DOS Upgrade Setup Disk 1.

Setup automatically converts your nonstandard (logical sector) large partition to MS-DOS 5.0, 6.0, or 6.2 compatible large partitions.

Additional query words: 6.22 6.00 6.20 wyse dos 3.3

Keywords: KB100741