Using this guide from LifeHacker (http://lifehacker.com/how-to-run-a-portable-version-of-windows-from-a-usb-dri-1565509124), I created a bootable/runable version of Windows 8.1 to run from a USB drive on my mid-2014 13-inch MacBook Air. Windows is running fine, but I am missing a few crucial drivers, such as the network adapter/network controller drivers. Do you know where I can download these so that I can get internet access on my Windows USB?