Hello, I'm helping a buddy out with his new computer build and we've got everything put together.. but when we try to install Windows 7 we get an error regarding missing drivers. We discovered that the issue is skylake related. Skylake motherboards don't have a USB 2.0 controller so we can't run the windows 7 setup. I have a valid key for Windows 8.1 Pro but I'm wondering if that will also give us the same trouble or not. Any ideas?