1. The only time I have seen two entries show up, its because there was an OS on the driver before and an image was applied overtop. For example, first boot after WinRE is run will do this, but the other option goes away after sysprep has run the first time. Are you doing multiple partition installs? I have noticed that the multiple partition option does not always assign the appropriate drive letters. 2. Unfortunately no. You can add an answer file directly into the image. All my images that use answer files have them in the image already.