Tom's Hardware > Forum > Storage > General Storage > USB mass storage device shows in Device Manager, not in Disk Managemen

USB mass storage device shows in Device Manager, not in Disk Managemen

Forum Storage : General Storage - USB mass storage device shows in Device Manager, not in Disk Managemen

Tom's Hardware: Over 1.4 million members in 6 different countries available to answer all your high-tech questions. Sign up now! Its free!
Ask the community Add a reply
Word :    Username :           
 
Hootie361   12-02-2007 at 02:20:14 AM

I'm at a loss folks. I've Google searched for this mishap and, after trying everything posted on the many sites, have had no luck. Here's the situation:

I have an XPC (running XP SP2) with two hard disks. Disk 0 is an 80GB Seagate SATA drive with letters D:, G:, and F: associated. Disk 1 is a 120 GB WD EIDE drive with letters C: and E: associated. I have a Plextor DVD-RW listed as H:, and at any given time I have a USB flash key that takes up I: and J:, a USB card reader that takes up M:, and a Cat-5 WD MyBook that takes up K:.

I recently purchased a USB to IDE device so I could read the contents of my old 2.5" drives (old mp3 players). When I plug this device in, the computer acknowledges a "USB mass storage device" is installed, but doesn't assign a drive letter. When I manage the PC, Device Manager shows the device listed under Disk Drives as a "Fujitsu USB" (which is fine, it is a Fujitsu 2.5" IDE drive). However, the Disk Management doesn't show the drive as attached.

I have tried any combination of the following:

Disconnecting my Cat-5 MyBook
Using regedit to reassign the other USB devices to other drive letters (N:, P:)
Using regedit to delete all traces of USB devices then plugging in my new USB-IDE device (no avail)

My computer can see the USB device attached. It has correctly identified the device attached as a Fujitsu drive. Why no drive letter?

Thanks

Add a reply
Sponsored Links
Register or log in to remove.
Hootie361   12-03-2007 at 01:20:40 AM
- -1 +

Update: In another thread I read someone solved their similar problem by installing a jumper on the device. I just tried that with no luck. Still stuck... any ideas?

Reply to Hootie361
trafficking   12-04-2007 at 10:39:00 PM
- 2 +

I am having the same problem with a Staples branded Relay 2GB USB flash drive. I've tried on multiple PC's and get the same result.

When I insert the drive, the indicator on my physical thumb drive lights up orange and XP recognizes a USB device has been connected. Device Manager shows a mass storage device connected. But the drive does not show up in Explorer or Disk Management.

Is there any other way to diagnose a potentially faulty thumb drive?

Reply to trafficking
Hootie361   12-11-2007 at 12:11:36 AM
- -1 +

For the USB thumb drive, try the following:

Run "regedit" and select the "HKEY_LOCAL_MACHINE/SYSTEM/MountedDevices" folder. See all the "Dos Devices" listed? You'll have one entry for each physically mounted drive (HDD or Disc) plus you'll have one show up for each USB drive you attempt to insert. Double click each device listed and see if you see text saying something like "U.S.B.S.T.O.R...". Once you find that device, right click it and select "Rename". Now change the drive letter to something unused... like Q: or something. Close regedit, disconnect the USB device and reconnect again.

If all went well, you should be able to see your new drive when you plug it in. I recently had a conflict with my Sandisk 5-in-1 reader and my PNY thumb drive. I forced my PNY to be the N: drive and the Sandisk to be the M: drive, that solved the problem. Unfortunately, I can't get this darn USB-IDE to resolve it's conflict.

Reply to Hootie361
Anonymous   03-24-2009 at 05:04:48 PM
- 0 +

This is from a post elsewhere, but it worked for me:

Assuming that the drive has been properly partitioned and formatted, then this USB drive probably still needs to be enumerated for this computer. Open Control Panel. Go through Administrative Tools to Computer Management. Under Storage, click on Disk Management. Locate the USB drive and it
probably needs to have a drive letter assigned to it. Do so (Right click and change drive letter - make sure it's not in use at time). Should take care of the problem.

Message quoted 2 times
Reply to Anonymous
sahid   04-23-2009 at 05:06:11 AM
- -1 +

My XP pc device manager show mess storage device not show disk management

Reply to sahid
ywow   04-23-2009 at 11:05:30 PM
- 0 +

THEY ARE JUST A LIER!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Reply to ywow
kmham   05-02-2009 at 06:47:00 PM
- 1 +

Anonymous wrote :

This is from a post elsewhere, but it worked for me:

Assuming that the drive has been properly partitioned and formatted, then this USB drive probably still needs to be enumerated for this computer. Open Control Panel. Go through Administrative Tools to Computer Management. Under Storage, click on Disk Management. Locate the USB drive and it
probably needs to have a drive letter assigned to it. Do so (Right click and change drive letter - make sure it's not in use at time). Should take care of the problem.




I too had this same issue. I see the drive now in Disk Management and it's formatting the drive as I type this. I'm using an IDE to USB cable with external power supply so I can format an old 3.5" internal 40GB hard drive via USB connection. Thank you for this post!!!

Reply to kmham
misra_sk   05-16-2009 at 11:52:17 AM
- 1 +

Hi folks,

I'm also facing a similar issue on pen drive usage. I've Windows XP pro SP 2 installed with AMD 2.5 G processor.

When I insert any USB storage device, it recognises the device but neither the drive letter is seen nor I can see the drive in disk management (incomputer management/storage).

I tried to alter the drive letter in regedit (as suggested in one of the posts above) but no luck.

Any further help in this regard will be useful.

Thanks.

Sudhir

Reply to misra_sk
Anonymous   05-23-2009 at 01:14:40 AM
- 0 +

Hello everyone,

I am having the exact same problem over here. I've tried everything that I can think of, and everything that other forums have suggested, and so far my problem remains the same. Normally I would just reformat for the easy solution, but I have too much music on my computer that I cannot afford to lose (and of course the problem prevents me from backing up my music).

Any suggestions would be much appreciated. Thank you.

Reply to Anonymous
lhuy   08-07-2009 at 11:26:09 AM
- 0 +

Anonymous wrote :

This is from a post elsewhere, but it worked for me:

Assuming that the drive has been properly partitioned and formatted, then this USB drive probably still needs to be enumerated for this computer. Open Control Panel. Go through Administrative Tools to Computer Management. Under Storage, click on Disk Management. Locate the USB drive and it
probably needs to have a drive letter assigned to it. Do so (Right click and change drive letter - make sure it's not in use at time). Should take care of the problem.


This solved my problem. Thank you very much!

Reply to lhuy
Ask the community Add a reply
Tom's Hardware > Forum > Storage > General Storage > USB mass storage device shows in Device Manager, not in Disk Managemen
Go to:

There are 1328 identified and unidentified users. To see the list of identified users, Click here.

Forum map
Bestofmedia Forum ©
2000-2009 Bestofmedia Group
Page generated in 0.609 seconds
Sponsored links
  • Ask the community now
  • Publish
Ad
They won a badge
Join us in greeting them