Summary: Disabling the lock screen using gpedit or the registry editor triggers some settings that are managed by your organization’s notice in the lock screen settings.
This is what happens when you disable the lock screen in Windows 10 using group policy editor (happens when you made it through the registry too): when you visit Lockscreen section under Customizing Settings, you will see a warning message that some settings are managed by your organization and options to change the lock screen background and everything else on the page is grayishlet’s see how to fix this.
undoing the change
1. Open the run dialog and type ‘gpedit.msc’ (without quotes)
2. Navigate to Computer Configuration > Administrative Templates > Control Panel > Personalization,
3. Double-click ‘Do not display lock screen’and set it to ‘Not configured’ from ‘Able‘ State.
Now when you visit Settings > Personalization > Lock Screen, that warning or message will no longer appear.
Disabling Lock Screen in Windows 10 Without Using Group Policy Editor
1. Open the registry editor using regedit in the Run dialog
2. Navigate to HKEY_LOCAL_MACHINE > Software > Policies > Microsoft > Windows,
3. Select the Windows key, right-click in the right pane and search for and create a new key called personalization
4. Make sure Personalization is selected on the left, right click on the right pane ‘new > DWORD (32-bit) Value’, give it the value name as ‘NoLockScreen’ and value like ‘1‘
5. Exit the registry editor.
TO UPDATE: Disabling the lock screen through the registry also triggers this, so you’d better not disable the lock screen so you don’t get the message.