Yeah, I'm in two minds about the whole signing in part... If you sign in, you get linked to pretty much everything that runs on MS. It sounds handy and I do like the idea of having access straight away to email, Azure, Office, etc. However, I have multiple email addresses. If you don't sign in, you get told to sign in to pretty much everything that runs on MS. OneNote, Store... you name it, you probably need to sign in. Not all of them have the option to sign in separately.