Ah! USB issues!

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igit

Thread Starter
Joined
Mar 31, 2006
Messages
14
Hey,
I have a problem with my computer freezing frequently. It seems to happen when an error message pops up saying: "One of the devices attached to this computer has malfunctioned and windows does not recognize it" for an unknown USB device.

I recently connected a mass storage device using the USB port and, during a file transfer, I just turned off the device instead of using the "safely remove hardware" button with Windows XP and now my computer gives me the error message. Do you have any advice for fixing the USB problem??
Thanks!
David
 

SUEOHIO

SUE
Joined
Jan 30, 2007
Messages
3,754
i would try turning the device back on and using the safely remove hardware and see if that helps. let us know if it worked.
 
Joined
May 3, 2006
Messages
22,445
Any yellow question marks in Device Manager...at or near usb controllers?
 

JohnWill

Retired Moderator
Joined
Oct 19, 2002
Messages
106,425
First step, Start, Programs, Accessories, System Tools, System Restore. Create a restore point and name it something like "Before USB Fix". This is to bail you out if something goes wrong during the following process and makes things worse.

Create a file with NOTEPAD containing the following lines and save it as FIX.REG

-------------------------- Use text after this line --------------------------------
REGEDIT4
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment]"DEVMGR_SHOW_NONPRESENT_DEVICES"="1"

-------------------------- Use text before this line --------------------------------

Double click on FIX.REG and say yes to the Merge Into Registry question.

Unplug ALL USB devices.
Open Device Manager.
View, Show Hidden Devices.
Uninstall all devices under USB Controllers.
Uninstall all devices under Disk Drives that you know are not present.
Uninstall all devices under Storage Volumes. Say no to any reboot prompts until you are finished. Also, if a Storage Volume doesn't uninstall, ignore it and move to the next one.
If you have a yellow ? with unknown devices, uninstall all of the entries there as well.

When this is done, reboot TWICE.

Reconnect the USB devices and see if they're recognized properly.

NOTE: If you have a USB keyboard and/or mouse, you'll have to modify the instructions and leave enough parts for those to function. I don't have one yet, so I haven't had time to modify the instructions.
 
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