How to change your account name on the Windows 10 sign-in screen

[Windows Central]

When you want to make the sign-in screen more private, use this guide to change your account name on Windows 10.
If you're running Windows 10 on your PC, you probably already noticed that your full name along with your email address always show up on the sign-in screen -- personal information that is pulled down from your Microsoft Account that you used to set up your computer.
While typically there is nothing wrong displaying the user's full name on the sign-in screen, some people may see this as a privacy concern when they use their computer in a public place.

Full story from the WindowsCentral blog...