Information
Windows Server 2019 must prevent the display of slide shows on the lock screen.
GROUP ID:V-205686
RULE ID:SV-205686r958478
Slide shows that are displayed on the lock screen could display sensitive information to unauthorized personnel. Turning off this feature will limit access to the information to a logged-on user.
Solution
Configure the policy value for Computer
Configuration >> Administrative Templates >> Control Panel >> Personalization >> 'Prevent enabling lock screen slide show' to 'Enabled'.