USB memory stick - missing drive letter - advanced query
Posted on 2006-03-24
I want to fix the missing USB drive letter problem without restarting my PC.
I have a test box here running XP Pro SP2. It has a single hard disk, C: drive, no network drives, and I am using one specific type of USB stick. I plug in my USB key and it is drive D: ... fine :) Over a couple of days I am using the stick, I unplug and plug back in, it works a random number of times (10, 15, 20, etc.) then a few days later it stops, no drive letter. :( I didnt do anything interesting i.e. no network maps, no other USB devices except an optical mouse, I just transfered some files back and forth.
To get the drive letter back I have tried:
* Manage -> Disk Management -> Drive Letters and Paths, changing the assigned letter to all sorts (E:, F:, I:, M:, etc)
* with the USB key removed - deleting extraneous entries (easy to identify because the system is so minimal) from:
After the above step I insert the key and the disk is recognised and installed again as new, but still no drive letter!
* If I restart the PC - the drive letter comes back *
What I find most ridiculous is that throughout all of this, at all times, the USB drive is accessible through a DOS prompt!
Right now in file explorer I have only a C: drive, but if I open cmd prompt...
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.
Volume in drive D is Kingston
Volume Serial Number is 3245-14FC
Directory of D:\
06/11/2005 16:33 2,686,976 Migo.exe
06/11/2005 16:33 699,383 MigoReadMe.pdf
06/11/2005 16:33 250,568 MigoUserManual.pdf
06/11/2005 16:34 1,789,952 SecureTraveler.exe
06/11/2005 16:34 585,823 SecureTravelerReadMe.pdf
<some files removed from text>
12 File(s) 6,649,213 bytes
5 Dir(s) 106,848,256 bytes free
Why why why?!
500 points and my hat off to anyone who can solve this.