Have you installed Service Pack 1? I know Pre-SP1 has limited support for USB 2 onboard hubs, I had the same problem with mine. I installed SP1 and ran through the driver wizard and it found drivers for the onboard USB.
Alienware 17 R4 2017 review
These brilliant Lego posters show just what children's imaginations are capable of
Mac power user tips and hidden tricks
Comment réinitialiser votre PC, ordinateur portable ou tablette Windows ?