Games and Cortana are good examples of why MS recommends using a MS account to sign-in to Windows.
The last couple of weeks when I turn it on, a message pops up that says, "Install a new build of Windows Now" I then follow the instructions which takes me to "Check now".
I have Windows 10 (and 10 only) on a spare computer.
I have never used the id Sister Mist55167 anywhere ...
ever (Nor wood eye) I might use the wizard avatar, but probably not!
You must have the latest update of Internet Explorer first.