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#21
I think it means what it says: a driver is missing or corrupted.
Try the following test to see if the driver needed to run in SuperSpeed is present:
USB 3.0 ports function as USB 2.0 ports on Windows 7 with an Intel USB 3.0 xHCI Controller - Super User
I assume everything is normal under USB Controllers in Device Manager, and you have the USB 3.0 eXtensible Host Controller Driver showing, and "this device is working properly"?