Itse virkkoi, noin nimesi:
I've got a WD My Book external drive. I used it for about a
month. Now suddenly it will not show up. I have two boot systems,
each one on a separate itnernal HD. the External USB drive will
not show up on either of them. I'm using XP Home SP2 + patches.
I thought Western Digital made good products. I thought USB Hard
Drives were good choices for backing up. Apparently I was wrong.
I'm really frustrated.
There might be more than one possible reason for this phenomenon, but
I have just found at least one of them.
I use WinXP SP2. My first discovery of the problem was when I tried
to read a USB-connected camera memory card. I was able to do that
only in DOS, that is, in "command line". In Windows I could not see
the card as a drive.
Later I bought a memory stick. I could not either see it as a drive.
I could not until I discovered, that it does show up in "Disk
management" in "Computer management". And from there I was able to
open it as a folder view. Not very practical, but now I managed to
use my memory stick.
Now I have bought a 500 GB Western Digital USB-drive. Same problem.
"My computer" showed the drives only up to F:, which was my DVD-drive.
It did not show WD. On WD I had drives G:, H:, I:, J: and K: all of
which properly showed up in "Disk management".
There was some notes in the web that it might help to change the drive
letter of the external drive. So I tried that. I changed the DVD-
drive to be K: and drives on WD to be from F: to J:.
Voilà, now the first drive of WD showed up as F:. But not the other
drives. And not the DVD-drive. Duh!
At this phase I remembered an old thing from Windows 3.11. There was
somewhere a list of drives up to Z: and check squares for them. And I
remembered Win3 to have some trouble if all the check marks were not
set. And they were not set by default.
I tried to find a similar place in XP but did not succeed. But then I
peeked in MicroSoft TweakUI, which is part of the Power Toys package.
And another voilà, there it was. And there were check marks up to F-
drive, no more. A plausible reason found!
I checked drives up to something more than K: and tried. All the
drives showed up perfectly and have done that since.
Problem solved! Hope this helps as many of you as possible.