Microsoft KB Archive/77707

= Turbo XT BIOS, Floppy Drives, and MS-DOS 3.3 and Later =

Article ID: 77707

Article Last Modified on 11/16/2006

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APPLIES TO


 * Microsoft MS-DOS 5.0 Standard Edition

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This article was previously published under Q77707



SUMMARY
On machines with a Turbo XT BIOS dated 1980, floppy drives may be unusable under MS-DOS versions 3.3 and later because the BIOS does not indicate the floppy drive model type properly. In some earlier versions of MS-DOS, the model type check is performed incorrectly, so the drives are usable.

Additional query words: 3.20 3.30 3.30a 4.00 5.00 noupd

Keywords: KB77707

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