
Researching this, I noticed numerous other people reporting this problem on multiple forums, however no one had a fix. This message stopped me from configuring my Exchange account with the Windows 10 Mail, Calendar, and People apps. There’s already an account set up to use. When trying to add, I was presented with: After joining the Surface to my domain, and attached my Microsoft account, I went to add my Exchange account (which is the same e-mail address I use for my Microsoft account). Recently, I did a fresh install of Windows 10 on my Microsoft Surface Pro. While many people use or addresses, some of us prefer to use our actual real e-mail addresses as Microsoft account logins. If you’re like me, you probably have your Microsoft account configured the same as your e-mail address.
