USB Mem Stick not visible to Windows Explorer

  A&D 20:40 01 Dec 2007
Locked

I have a 2GB USB memory stick which I have used successfully for the past 3 months. Now when I plug it in it is not listed in Windows Explorer so I can't do any RW. It is listed in the Device Manager as OK and in the Safely Remove Hardware it is shown as being present as drive H. The only thing I have done recently associated with drives is to upgrade my Dantz (now EMC) Retrospect Backup program. I am running XP Media Centre and have the following drives which are all shown correctly in Windows Explorer:

C 350GB
D 350GB
E DVD ROM
F DVD RW
G External USB Maxtor 200GB

How can I make WE show drive H please?

  Fruit Bat /\0/\ 20:44 01 Dec 2007

Refresh USB Ports
In device manager Uninstall EVERYTHING under the heading USB,
reboot the PC let XP find and install new hardware.
Your equipment should now be recognised.

  SANTOS7 20:44 01 Dec 2007

Might work..

reassign the USB to
a different drive:
* insert offending USB memory stick
* open windows explorer and make a note of an empty
drive letter (e.g. 'M')
* Go to desktop <flag D>
* right click 'My Computer', select 'Manage'
* this opens Device Manager
* select 'storage/disk management'
* find the offending USB drive in the volume pane
* right click the offending drive and select 'change
drive letter and paths...'
* select 'change' then 'Assign the following drive
letter' and select an unused drive letter (e.g. 'M')
* press ok and exit from Device Manager

  A&D 11:38 02 Dec 2007

Thanks to Fruit Bat and Santos for the prompt replies and suggestions. However, after sleeping on the problem overnight, I had a more basic idea. This morning I plugged in the Memory stick BEFORE turning on the PC. Lo and behold Windows Explorer listed it as drive H. I then tried unplugging it using the Safely Remove Hardware and then on plugging it in again (this time with Windows already running) and Explorer again showed it correctly as drive H. I can now read and write data with no hassle. I assume the problem was a timing (is it called IR?) conflict which Windows has resolved. Thanks again for the interest.

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