This seems to be a large problem out there and unfortunately i have no solution.
Also i did NOT have this problem on windows xp x86 or x64 previously.
I have plenty of USB devices and they all work perfectly fine on any port.
I also cleaned the motherboard two times once with dish soap
and another time with isopropenyl alcohol (with q tips)
In case there was any foreign debre creating a short on the mobo.
I also cleaned and inspected inside the usb port plugs, some people
have reported bent pins or garbage in there causing a problem.
Also tried re installing the usb controllers many times to no avail..
In case anyone is wondering if i have a Bad psu ? I use Aida64 to monitor
my voltages against what my bios reports and have used a Multimeter
to measure the voltage on my rails and there is no problem
Some people on the net have reported that unplugging their power supply
and discharging their computer helped because of a Capacitor issue
but this doesn't do me any good..
I have an Evga 680i SLI motherboard on Windows 7 Ultimate 64 bit
I'd love to hear from anyone that has a solution to this phantom device issue
Nirsoft - USBDeview (Freeware) can show some handy USB data
http://www.nirsoft.net/utils/usb_devices_view.html
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