If I use my live.com account, Windows sets system username automatically with first five letters of my first name. Then I see this stupid choice every time I open Windows console.
Yeah, I've always found that behavior really annoying. And it's basically impossible to fix it after the fact without making a separate account. The trick, if you know it before hand, is to make a local account (I guess you need to be offline for that now) and then link it later.
