Installing MS-DOS 5.0 on a Tandy 1000HX (75078)

The information in this article applies to:
    Microsoft MS-DOS operating system 5.0
    Microsoft MS-DOS operating system 5.0a

This article was previously published under Q75078


Before installing Microsoft MS-DOS version 5.0 on a Tandy 1000HX, you must follow the procedure outlined below to disable the ROM DOS functionality of the Tandy.


    Insert the original Tandy MS-DOS 2.11 floppy disk into drive A.
    At the A prompt, type SETUPHX and press ENTER.
    The BIOS/ROM DOS Setup program loads, displaying a menu of options. Use the UP and DOWN ARROW keys to select options. Use the LEFT and RIGHT ARROW keys to select settings. (The current settings are highlighted.
    Use the DOWN ARROW key to select the PRIMARY START-UP DEVICE option. The choices are MEMORY and DISK, with MEMORY being the default.
    Use the RIGHT ARROW key to highlight DISK.
    Press the DOWN ARROW key to select the INITIAL START-UP PROGRAM option. The choices are MENU, MS-DOS, and DESKMATE, with MENU as the default.
    Use the RIGHT ARROW key to highlight MS-DOS.
    Press F1 to update the EEPROM.
    Restart the computer and proceed to install MS-DOS 5.0.
The Tandy products included here are manufactured by vendors independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability.

Modification Type: Major Last Reviewed: 9/30/2003
Keywords: KB75078