Policy
Do not display the lock screen
This policy setting controls whether the lock screen appears for users. If you enable this policy setting, users that are not required to press CTRL + ALT + DEL before signing in will see their selected tile after locking their PC. If you disable or do not configure this policy setting, users that are not required to press CTRL + ALT + DEL before signing in will see a lock screen after locking their PC. They must dismiss the lock screen using touch, the keyboard, or by dragging it with the mouse.
8b77af6a2770 CPL_Personalization_NoLockScreen Registry
Copy registry mappings
HKLM\Software\Policies\Microsoft\Windows\Personalization\NoLockScreen (enabled) = 1
HKLM\Software\Policies\Microsoft\Windows\Personalization\NoLockScreen (disabled) = 0 Policy notes
This policy setting controls whether the lock screen appears for users. If you enable this policy setting, users that are not required to press CTRL + ALT + DEL before signing in will see their selected tile after locking their PC. If you disable or do not configure this policy setting, users that are not required to press CTRL + ALT + DEL before signing in will see a lock screen after locking their PC. They must dismiss the lock screen using touch, the keyboard, or by dragging it with the mouse.