Can't log into new user on Windows 10

[Mason Methot]

I created a new user so I can do other stuff on that one, but when I created it in settings (no email or Microsoft account) and then I sign out of my admin, and try and log into the other it says "Welcome" for a quick second then "Signing out" straight after. It then brings me back to the lock screen.
I tried making another with an email account but it does the same thing. Even after restarting!
What causes this and how can it be fixed?
TIA!

 

[Tradesman1]

Might have a corrupt default user account, try creating via the command prompt (details below)

http://superuser.com/questions/947398/cant-login-with-new-local-users-in-windows-10