I have two hotmail accounts. When I try to sign in to one I get the following message: You're currently signed in with an Office 365 email account, which can't be used with Outlook.com. Please click here to sign out of your Office 365 account, then use another Microsoft account to sign in to Outlook.com (for example, your hotmail.com, live.com, or msn.com account). I follow the link and re-enter my login information and then I get the same error message.