Hello noob here.. Well i purchased a brand new Surface pr0 3 from craigslist at a great price. I checked it over there was not issues with it and it was still in the wrapper, The guy even showed me a receipt.. I updated to Windows 10 just to give it a test drive. Well now i want to go back to windows 8.1. This is where the problem comes in. I got to Microsoft website to download SP3 image and i cant register my SP3. I gave Microsoft a call and they say it was already registered to another email adress. I was wondering was it done when it was purchased or after. I saved my recovery image off 8.1 to a flash drive and even saved a copy to my other windows 8.1 computer. Can i use my recovery image to get back or do i need sp3 image to get back... Please help..