1.    15 Jan 2017 #1

    Using B: or even A: as drive letters


    I stumbled of a support question in a game forum, the guy had bought a new HDD and seemingly assigned its drive letter to B: .

    Now, for us older geeks we do recall that A and B was reserved for floppy, but it seems Windows still has issues using those letter for primary drive designation. I searched a bit and found this:
    You can assign the letters C through Z to each drive on your computer. A and B are usually reserved for floppy disk drives, but if your computer does not have floppy disk drives, you can assign A and B to volumes.
    So when I built a new computer recently with two internal drives, one for the OS and one for data, I thought, hey!, Iíll make my data drive ďAĒ. I felt all rebellious until I discovered that Windows will not index drives lettered A or B.

    Took me quite a while to figure out what the problem was, but I found some other people who suffered the same issue when they used A or B for a [primary] drive. As soon as I assigned that drive a different letter, windows indexed the drive. So much for being rebellious.
    from: What Are the Windows A: and B: Drives Used For? which is from 2015.

    Have we not advanced further in drive management?
      My ComputersSystem Spec
  2.    15 Jan 2017 #2
    Join Date : Apr 2015
    Posts : 229
    Windows 10 x64 v1703

    We may have our own reservations about Windows and how it works but Windows reservation of drive letters come first
      My ComputerSystem Spec
  3.    15 Jan 2017 #3
    Join Date : Oct 2013
    A Finnish expat in Germany
    Posts : 12,953
    Windows 10 Pro

    Quote Originally Posted by Coram Daes View Post
    Have we not advanced further in drive management?
    Windows drive management is pretty advanced and logical. A and B are reserved for removable drives (not only floppy drives, any removable drive) therefore no indexing. There's nothing to prevent users to use them for instance for CD / DVD drives or hard disks not needing to be indexed like backup drive which only contains image backups and will usually be disconnected when not doing a backup.*
      My ComputerSystem Spec
  4.    15 Jan 2017 #4
    Join Date : Aug 2014
    Forever West
    Posts : 3,922
    Win10 Home and Pro, Win10 Insider Preview, Win7 Home, Linux Mint

    One thing I ran into with drive lettering is that Windows automatically assigned Z: to the 1st NAS drive I attached to my Router then when I attached the 2nd drive Windows assigned Y:, digging into information online indicated that is by default but can be changed later.

    As for A: I found that if the BIOS has a setting for it and there is a pin socket for the cable on the motherboard Windows will have issues even though I had disabled that drive in the BIOS.
      My ComputerSystem Spec

 


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