Your motherboard doesn't have any AMD USB or chipset drivers. Downloads for it can be found here:http://www.asrock.com/mb/Intel/Z87%20Extreme6/?cat=Download
Reinstall your USB drivers and you should be okay. You can also try this method to get your system to see the devices.
Shutdown the system. Disconnect the mouse and kb. Start the system (devices still disconnected).
Log in to the system (tab to change fields). When Windows is fully started, reconnect the mouse and kb. Windows should see the "new" devices and reload their drivers.