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Flash Drives G: and H: vanish

Posted on 2009-03-29
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Last Modified: 2012-05-06
For the longest time, I've had two Flash Drives connected by two USB Ports, i.e. G: and H:  Along with my previous request--i.e. ...stops and goes...--and about a week ago, I realized my Flash Drives weren't available anylonger.  I've gone to Start/Control Panal/System/Hardware/Device Manager/Disk Drives/ and deleted the two "USB Disk 20X USB Devices" in hopes that upon reboot they'd be seen by Win XP Home Ed. as new hardware, and they were, but they still didn't appear.  I've checked the back of my computer to make sure the USB connection were plugged-in securely, and they were secure, but to no avail.  I don't know if USB Drives show in Safe Mode but I tried Safe Mode also and they still didn't appear.  

Point:  Can anyone help me figure out how to reconnect or just fix whatever went wrong with my system so I can get my USB Ports working again and so my Flash Drives will appear in My Computer again so I can use them?
No code, just realized one morning Flash Drives were gone.

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Question by:Mordido
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Expert Comment

by:shopjd
ID: 24013985
plug and unplug
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Expert Comment

by:Mohammed Hamada
ID: 24014018
They could be malfunctioned and will not operate anymore... Can you give the specifications of these Flash drives? i.e. (size, brand name..etc).

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Expert Comment

by:nobus
ID: 24017798
Remove old hardware devices :
go to Start>right click My computer>properties>device manager
in the view tab - click : "show hidden devices"
inspect  device manager for all hidden devices, and remove them

http://support.microsoft.com/kb/925196
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Expert Comment

by:Gothmog
ID: 24017872
Have you tried these flash-drives in other computers? If so did they give the same kind of problem or not? If not try it and see if it will make a difference.

Have you tried putting in other flash-drive/s that you know works into your computer? If so have you experienced the same kind of problem with those flash-drive/s or not?
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Expert Comment

by:William Fulks
ID: 24021527
Do you have any mapped drives on your PC? I've seen Windows sometimes want to put a Flash drive on top of a mapped drive.
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Author Comment

by:Mordido
ID: 24054886
shopjd:  What do you mean by Plug and Unplug?
moh10ly:  I bought both Flash Drives new and together and considering all the problems happening with my computer at the time, problems that preceded the flash drives disappearing, I just can't see both of them disappearing at once.  Moreover both drives are still listed in My Computer/Manage/Computer Management/Disk Management and under all the column headings, e.g. Volume, Layout, Type, etc, only Volume shows an icon but no listing or name and under File System, no CDFS, NTFS, or FAT32, just nada--but the two flash drives are listed.  Partiularly under Capacity and Free Space, the drive memories are there, i.e. 476 MB (Capacity), 962 MB.  The weird thing is that it's 476 MB for one of the flash drives under Capacity and Free Space, and with the other flash drive, it's 962 MB under Free Space and Capacity and I know for a fact the Free Space and Used Space in both differs.
P.S.  they're both Attache' and one is 512 MBs and the other is 1 GB.
nobus:   I went there and uninstalled the two flash drives and then rebooted to reinstall the and it didn't help.  
Just to be sure, you want me to delete or uninstall all Hidden  Devices, and, are Old Hardware Devices the same as Hidden Devices?  I'll try this and let you know if it works and I'm also looking into the hyperlinks you gave me.   Talk to you soon.
Gothmog:  I'll see if my daughters Labtop has USB and can handle my flash drive, then I'll get back to you.
phungus69:   How would I find out if I have any mapped drives?  Somewhere on the backroads of my mind, I'm mapped a couple drives but I let the computer do it and never followed through on it.  So let me know how to find out if I have mapped drives and what to do about if I do.  
P.S.  To all, as an aside, what are "Attach[ed] Code Snippet[s]"?  
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Expert Comment

by:Mohammed Hamada
ID: 24055073
Download this tiny program and delete all the old devices of your list and try to plug both USBs again.

http://www.nirsoft.net/utils/usb_devices_view.html
Download Link
http://www.nirsoft.net/utils/usbdeview.zip
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Author Comment

by:Mordido
ID: 24112417
P.S.  moh10ly: offerred two links that I used to download USBDeview application that indicates that my two Flash drives are Connected, Unsafe to unplug, Disabled, No Drive letter (Yet My Computer lists them as G: and H: Local Disks with a little red ball with a white ? mark in it on the Local Disk icons).  Also, USB Deview lists Serial Numbers for the two flash drives, last plug/unplug date, Vender ID, i.e. 0d7d for both flash drives, Product ID, i.e. 1600 for both flash drives, USB Class, i.e. 08 for both..., USB SubClass, i.e. 06 for both..., USB Protocol, i.e. 50 for both..., and no Hub/Port, Computer Name, Vendor Name, or Product Name (but Attache' is the name on the flash drives themselves).  I hope this helps.
Point is that my flash drives must be working or at least they're connected, even in Device Manager it shows there memory capacities,, free space, used space, etc.  This info indicates the flash drives are working but other info indicates the flash drives are lost, i.e. there's no drive letters, or at least they can't be enabled because USBDeview has a function to enable/disable and I've tried enabling both flash drives, even disabled then enabled them, but they're still not enabled.  Again, I hope this info helps but there's no brass ring yet).

P.P.S.  In Device Manager/Storage volumes/Generic volume, all of which have a yellow ball with a black ? mark in the yellow ball on the Generic volume icon and when I right click one of the Generic volume icons or text and then click properties, I recieve this error message:  "Windows cannot initialize the device driver for this hardware. (Code 37). 

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Expert Comment

by:nobus
ID: 24113721
>>  are Old Hardware Devices the same as Hidden Devices?  <<  yes

you can also reset the usb :
rundll32.exe setupapi,InstallHinfSection DefaultInstall 132 C:\WINDOWS\inf\usbstor.inf
rundll32.exe setupapi,InstallHinfSection DefaultInstall 132 C:\WINDOWS\inf\usb.inf
rundll32.exe setupapi,InstallHinfSection DefaultInstall 132 C:\WINDOWS\inf\usbport.inf
rundll32.exe setupapi,InstallHinfSection DefaultInstall 132 C:\WINDOWS\inf\usbprint.inf
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Mordido earned 0 total points
ID: 24204705
Well, Gentlemen, nada has changed or helped my computer's situation.  I decided to do another Recovery.  This time, a Non-Destructive Recovery.  My flash drives are working again and in general, my systems now ok.  You guys tried, and you gave good suggestions, but the situation came down to another Recovery.  I'm going to cancel this call for help.  I'd appreciate any advice on how I go about canceling this request for help.  As said, I used another Recovery process.  Again, thank you for your help.
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