Your board has two separate USB 3.0 interfaces/chips, Intel and Etron. I'm guessing that the Etron USB 3.0 driver was not installed, but not sure.
If you start the Windows Device Manager, and double click on "Universal Serial Bus Controllers", you can check if all the USB hubs are working. If you see any yellow '!' symbols, that means that device has a problem.
The Etron USB 3.0 driver can be downloaded from your board's download page:
ASRock > Fatal1ty Z77 Professional
That file must be unzipped and then the application is run in Windows to install the driver.