So, i'm planning to buy a surface laptop, and then upgrade it to win 10 pro. I've heard that it is free until 2018. But I was a little skeptical about it, so I made some research on it. On some pages, people where saying that you could upgrade it for free, if you made a special microsoft account for your pc, and others (like windows central), were just saying that you could upgrade it for free. I just don't know what to believe? Can you upgrade it for free without a special account, or do you have to make a special microsoft account, to upgrade to windows 10 pro until next year?