Installing MS-DOS 5 Upgrade on Zenith MinisPort HD (76879)

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

This article was previously published under Q76879


After installing Microsoft MS-DOS 5 Upgrade on a Zenith MinisPort HD computer, the computer will not boot properly unless the external floppy disk drive is connected.


When the Zenith MinisPort external drive is not connected, the computer will display the following message:

Non-System disk or disk error
Replace and press any key to continue.
MS-DOS 5.0 is compatible with this machine; however, to remedy the above problem, you must connect the external floppy disk drive to boot with DOS 5.0, or it must boot from internal ROM DOS.

To enable the machine to boot from ROM DOS, press CTRL+ALT+INSERT to access CMOS setup, and type setup at the command prompt. CMOS setup will allow you to change the boot options to ROM DOS.

For more information on the Zenith MinisPort, query on the following words:


The product included here is manufactured by vendors independent of Microsoft; we make no warranty, implied or otherwise, regarding this product's performance or reliability.

Modification Type: Major Last Reviewed: 12/3/1999
Keywords: KB76879