I'm having trouble getting Windows 7 to install on a retina MacBook Pro that has a PCIe SSD. I boot off the USB stick, get to the point where I choose language, hit install and it gives me a driver error. So essentially, it seems the Windows installer can't see the PCIe SSD without the right driver. I've Googled around and there's fixes for PC's but nothing I've seen for a Mac yet. The bootable USB stick was first created using a Windows 7 machine and the official MS tool. I then tried using Boot Camp Assistant to create the USB stick from a Win 7 iso in case it stuck on the required driver to see the PCIe SSD but it didn't make a difference. Anyone encountered this?