Re: usb devices

Tech-Archive recommends: Repair Windows Errors & Optimize Windows Performance

Yes it should be fine to delete all of the keys, Windows should then
reinstall all as new hardware.

I had one small little flash disk, which was working fine. It was some
others,
along with the digital camera, that werent working before.

Things became a little worse now that I deleted these keys,
this specific flash disk is not recognized either. As soon as I plug it in
I get Found New Hardware(Rover Disk) at the bottom right corne.
Then its taking me to the Welcome to the new found hardware wizard,
which searches all to no avail...

Now when its still plugged in, I look in device manager, and I see under
Other Devices the name of the disk Rover Disk with a big yellow question
mark on its left... The same happens with my camera and all other flash
drives.

I have another laptop and one desktop, all devices work fine on these,
its this computer I have right here that doesnt recognize them.

Is there a way to copy portion of the registry of that other laptop onto
this one here?









"Stephen Whitlock" wrote:

Yes it should be fine to delete all of the keys, Windows should then
reinstall all as new hardware. Don't just delete the key containing the
value of DeviceDesc delete the parent key as well, probable with a name
along the lines of vid_<numbers & letters>.

bp wrote:
Under the HKLM\SYSTEM\CurrentControlSet\Enum\USB key,
I found a number of subkeys, whose deviceDesc is the following:

USB Composite Device (1 or 2 of these)
USB Mass Storage Device (3 or 4 of these)
Mass Storage Device (3 or 4 of these)
USB Mass Storage Class (2 or 3 of these)

BaromTec HMS30C6001 Reset Driver (dont know what this is)
USB Flash Memory Controller Driver:(6002)

Oregon Scientific 6639 (dont know what this is)

Flash Disk

USB 2.0 SD/MMC READER


I have 3 or 4 usb flash drives, as well as a digital camera,
none of which works on this laptop, but work anywhere else.
Which of the above keys should I delete? Will that force them
to be recreated after startup and fix the problem?
Thanks, bp














"Stephen Whitlock" wrote:

You may have to give yourself permission to delete the key. Right click
the key and select permissions, then edit the permissions exactly the
same way as file permissions.

bp wrote:
I found a couple of entries with UNKNOWN in the devicedesc,
but when tried to delete them, I got error message saying
they cannot be deleted.




"Stephen Whitlock" wrote:

It probably is a registry issue but try looking at:
HKLM\SYSTEM\CurrentControlSet\Enum\USB. Have a look in all of the
subkeys for Unknown or similar in the value for DeviceDesc. delete the
whole key for any you don't recognise and then the hardware should
install ok.

Elmo wrote:
bp wrote:
I have the exact problem as described here. My usb flash drives do not
work, and neither does my digital camera. All of which are recognized
fine, however, when I simply take them to a different computer, any
computer.
This method described below
http://www.uwe-sieber.de/usbtrouble_e.html#xp_asks_for_drivers
unfortunately does not really help. My registry already contains
correct values.

I just wish Microsoft or someone would create a driver for such
devices, or some exe to run and repair or reinstall all USB drivers
missing or corrupt. That would be a much better fix instead of
repairing windows.
Maybe something at one of these USB Help sites:
http://www.usbman.com/WinME%20USB%20Guide.htm

General USB troubleshooting in Windows XP
http://support.microsoft.com/kb/310575

Troubleshooting for USB drives
http://www.uwe-sieber.de/usbtrouble_e.html


.

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