Advanced Tip Series!
There has been a tremendous outpouring of comments on Windows 10 Technical Preview, both positive and negative. Some people have had a lot of luck running it while others have run into problem after problem. When you're dealing with a software preview, that's just the nature of the beast.
You may be one of the technical daredevils that boldly loaded Windows 10 on your Surface Pro 3. You may also be one of those sad souls who now regret that decision. If you fell into the second category and neglected to heed all the warnings about creating recovery media for your device, Windows 10 install has almost certainly wiped out the recovery partition on your Surface. This missing recovery partition makes an easy return to Windows 8 impossible.