how to change Windows 10 log-in screen


color only login

open the Registry Editor
create a DWORD value named “DisableLogonBackgroundImage” with the value “00000001”.

note: Delete the value or set it to “00000000” to go back to the default Windows 10 “hero image.”

set color to login

Settings app, select Personalization,
select Colors,
disable the “Automatically pick an accent color from my background” option.
The color you select here will be used on your login screen if you’ve used the above registry hack.