Made a Microsoft Account Need To Remove Login

Hello,
I made a Microsoft account last night to get an app and now there is a login in screen on my computer that was not there before. I am using a new licence of Windows 10 on a new computer and I would like to undo the changes making a Microsoft account made to my computer.
I read this thread:
Help Removing Microsoft Account login
However the solution was not satisfactory. The login screen introduced doubles the startup time of the computer.
How to remove?

Thanks Brink,
That has fixed the issue however the start up speed has taken a permanent hit with an automatic logon rather than a startup with no logon. I will have to get used to using regedit so I can one day have actual control of my PC.

There is a blue login screen for a second or two when the computer usually would have gone straight to desktop. It then goes straight to desktop so there is no real issue any more. The problem was solved using the second option of that link you posted.