Q41189: Maximum Number of MS-DOS Disk Partitions and Other Drives

Article: Q41189
Product(s): Microsoft Disk Operating System
Version(s): MS-DOS:3.x,4.x,5.x,6.0,6.2,6.21,6.22
Operating System(s): 
Keyword(s): 
Last Modified: 17-DEC-2000

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The information in this article applies to:

- Microsoft MS-DOS operating system versions 3.1, 3.2, 3.21, 3.3, 3.3a, 4.0, 4.01, 5.0, 5.0a, 6.0, 6.2, 6.21, 6.22 
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SUMMARY
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The maximum number of logical drives that can be contained in an extended
partition is 23. Thus, with an active MS-DOS partition, and all 23 logical
drives (in the extended partition) allocated, this gives 24 hard-disk drives (23
+ 1) that can be used, in conjunction with other virtual RAM drives, network
drives, and floppy-disk drives. The maximum number of total drives that MS-DOS
can use is 26: Drive A through Drive Z.

Additional query words: 6.22 3.30 3.30a 4.00 4.01 5.00 5.00a 6.00 6.20

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Keywords          :  
Technology        : kbMSDOSSearch kbMSDOS321 kbMSDOS400 kbMSDOS320 kbMSDOS330a kbMSDOS621 kbMSDOS622 kbMSDOS620 kbMSDOS600 kbMSDOS310 kbMSDOS500 kbMSDOS330 kbMSDOS401 kbMSDOS500a
Version           : MS-DOS:3.x,4.x,5.x,6.0,6.2,6.21,6.22

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