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What are the Windows A: and B: drives used for?

Fresh7 days ago
Mar 15, 2026521886 views
Confidence Score1%
1%

Problem

In Windows you have a C-drive. Everything labeled beyond that is with the following letter. So your second drive is D, your DVD is E and if you put in a USB stick it becomes F and the following drive G. And so on and so forth. But then, what and where are A and B-drives?

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Fix for: What are the Windows A: and B: drives used for?

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Short Version: A: & B: are reserved by floppy disk drives, so C: is used by hard drives for backwards compatibility reasons. Once upon a time, the early CP/M and IBM PC style computers had no hard drive. You had one floppy drive, and that was it. Unless you spent another $1k or so on a second floppy drive, then your system was smokin'! If you only had one drive it was common to boot from one disk, put in the other disk with your programs and data, then run the program. Once the program finished…

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