Backwards compatibility

Just noticed - even in Windows 8.1, my hard drive is C:, that implies there may be floppy A: and B: somewhere. It is fine as long as there are no references to floppy drive...

But wait, when I try installing a new device driver, select "I have a disk" option, the default path is A:!
Cool, Windows 8.1 is looking for a floppy disk...