Hi,
Download and install the drivers for the USB 3.0 Driver: Intel® USB 3.0 extensible Host Controller from the link provided below.
Also see:
http://www.intel.com/support/chipsets/usb3/sb/CS-033081.htm
Do let us know the status of the issue.
I will give it a try, but my notebook has Intel 7 Series/C216 Chipset... Also, I tried to update manually back to the MS driver that was installed by the clean install and it gives me an error that a problem was encountered... For some reason Windows isn't letting me even downgrade to the previously installed driver... Let me try this driver you suggested and I will post back the results ok... Gimme a few minutes...
Hey! Well here's what happened... I tried with the Setup.exe and received an error that my notebook doesn't meet the minimum requirements... I also tried thru Device Manager using "Have Disk" method with no luck... Error about making sure that the driver was for a x64 machine or OS.... I had previously tried installing the other Intel drivers for my chipset with the same results... I checked System32\DriverStore\FileRepository... and I found 3 different usbxhci.inf folders, 1 with the current driver that Windows 8.1 installed version 6.3.9600.16459... 2 with a driver v6.3.9600.16405 Which matches the USB Root Hub (xHCI) driver... and 3rd folder with the original v6.3.9600.16384 driver.... I am out of ideas!!! I assume that the driver v...405 should be the one installed so that it matches up with the Root Hub driver... Any Ideas??? One other curious detail... In the Details tab for the 3.0 Host controller for Location info... It shows this:
PCIROOT(0)#PCI(1400)
ACPI(_SB_)#ACPI(PCI0)#ACPI(XHC1)
ACPI(_SB_)#ACPI(PCI0)#ACPI(XHC_) <- Shouldn't this show (XHCI2) Since I have 2 usb 3.0 ports???
I look forward to your reply.... THX!!!