I upgraded my Surface Pro 3 to Windows 10. Everything went fine and so far I like it. I wanted to make a restore point which I discovered I couldn't do with the previous OS on the drive. Here is the strange part. I had been running 8.1. But my rollback option is to Windows 7. Huh? What if I want to roll it back at some point? I have to now use Windows 7? Any insight appreciated.