Windows 10: Lockscreen user list - grey key icons duplicating user accounts

Hello,

On my new W10 machine (which is part of a domain) there are multiple sign-in buttons for the same account.
First a profile picture with user name, followed by key icons with the word password behind it.
Both options lead to the same account.
Simular to this picture:





Does anyone have a solution for this weird behaviour?
How to remove these key icons, with password behind it.
Many thanks in advance

:)

 

Windows store and lockscreen not working properly on Windows 10

now both windows store and the lockscreen are working properly on my admin account on PC, but not on user account. I changed the lockscreen through admin account but again it showing solid backgrounds when I again switched to the user account.Please tell
me how can do this on user account.

 

Lockscreen settings not working anymore

I tried lterally everything i could find when searching for that problem (which seems to be known for windows 8 as well),

including

- deleting SystemData files,

- replacing the corrupt web/Screen/img05.jpg,

- registry tweaks to HKCU/.../LockScreen (including copying over the whole key from an new user account with functional lockscreen settings)

with no success.

The only thing wich really works for me is creating an new user account, there the lockscreen settings work as they should.

However, the fact that it initially worked on my original account and suddenly stopped to do so for no apparent reason suggests that a new user account might only be a temporary workaround than a permanent solution as the problem might come back any time
on that new account too.