Microsoft KB Archive/74422

= MS-DOS Does Not Upgrade from Compaq DOS 2.11 =

Article ID: 74422

Article Last Modified on 5/12/2003

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APPLIES TO


 * Microsoft MS-DOS 5.0 Standard Edition
 * Microsoft MS-DOS 5.0a
 * 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

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This article was previously published under Q74422



SUMMARY
Compaq DOS version 2.11 is equivalent to MS-DOS version 2.1. Microsoft MS-DOS 5 or later Upgrade requires MS-DOS 2.11 or later to upgrade DOS to version 5.0 or later. The following error message is likely to occur when upgrading from Compaq DOS 2.11:

YOUR VERSION OF DOS CANNOT BE UPGRADED BY SETUP



MORE INFORMATION
You may receive this message when installing to the hard disk or to the floppy drive. To upgrade to MS-DOS 5.0 or later, use the following steps:


 * 1) Install MS-DOS 5.0 or later on another computer by typing setup/f.
 * 2) Boot the original computer using the startup disk.
 * 3) Verify that the hard disk is functional under MS-DOS 5.0 or later (the CHKDSK [no /f] command will verify proper disk access by the current DOS version).
 * 4) Use the SYS command to copy the system files onto the hard drive.
 * 5) Copy the MS-DOS 5.0 files or later from the working disks to the DOS directory on the hard drive.
 * 6) Restart the computer from the hard disk.

Additional query words: 6.22 5.00 5.00a 6.00 6.20

Keywords: KB74422

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