I have got the same problem as you before.
The solution I have done is that I removed all the usb stuff from the device manager and then power off the computer. Once the computer is turned off, I also detached the power cord connected to the computer. If you are using a laptop, I suggest also remove the battery. After a short while, I attached the power cord to the computer again, then turn it on, and the problem is gone!
I hope this would help you to solve the problem.
Originally Posted By: Tarek
when i removed all the usb stuff from the device manager and windows reinstalled the drivers, I got the same message before i even attached anything to my laptop!
upon closer inspection I realized that the built in webcam is a usb device but I dont think that is the problem.
When i double click on the conflict, I get the "USB device not recognized" window listing:
USB Root Hub (2 ports)
Unused Port
Unknown USB Device
...but there is nothing plugged into my 2nd USB port!
This makes me think its a hardware problem and something got fried inside my laptop
when i plug in a flash drive and my wireless mouse receiver, the listing above changes to :
USB Root Hub (2 ports)
Unknown Device
Unknown Device
sometimes one of the 'unknown device' is in bold, sometimes the other
any new thoughts on the problem?
Tarek
flat_soda@hotmail.com