USB Device Not Recognized

[tech chris]

I Plug in my usb drive any of them and i have many to a few of my computers
that were just updated and they come up not recognized although they used to
work just fine i plug them into a computer that was not updated recently and
no problem i think there is an update microsoft just put out that stops them
from being recognized but i dont know which one can anyone help?

 

[Devil_Himself]

Try This -
http://forums.techguy.org/hardware/580686-solved-computer-not-recognizing-external.html

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.