On a side note when installing windows via USB, if you select usb as boot device from the quick boot and that does not work, then you need to do the following:
Go to hard drive group in your bios and select the usb as your first boot "drive", then in generic bios boot settings select hard disk group as first boot device.
Some slightly older motherboards (especially those that are not UEFI), wont boot a USB drive without setting it in the hard drive group.