I'm wondering if the method of deploying matters. For my test, I had deployed a Windows 7 x64 image with Imagex to a single partition. I can also try using DISM with a System Reserved partition. All my Vista images are archived now and I'm actually using Diskpart from Windows 8. I figured that it would probably be better to attempt to convert the file system prior to booting into Windows for the first time, which is why I did not want to consider doing a manual install from DVD.