USB Unknow Device

[rafterut]

Can anyone help with this a USB problem?

For months I've used a USB External HD. Now when I turn on my HD XP flags me with "Unknown USB device. USB has malfunctioned.."

How do I fix this.

I've tried to update drivers in Device Manager, but nothing works. HELP!!!!

 

[Peddant]

Have you tried disconnecting the HD from USB,and then removing the USB controllers in the Device Manager,and then shutting down the PC,connecting the HD,and then restarting.Sometimes works.Sometimes doesn`t.