I have a similar problem on my windows 7 32 bit. However, my device does not run on the enterprise version. My issue is that when I connect my board via the programming port, my computer downloads a driver for a GPS camera. I followed the steps, but when I came to the step; "Look for the listing named “Ports (COM & LPT)”. You should see an open port named “Arduino Due Prog. Port”" it had the title GPS camera detect (COM4).
Not sure if this is helpful in anyway, but I posted it in just in case.