YOu may disable Windows Spotlight via Windows 10 Settings or using Registry or Group Policy Editor and see if that helps you. On the right pane, add or change ... Why is my lock screen stuck ...

Several steps are involved, but if you follow them closely, you'll be able to disable the lock screen in just a few minutes.

The feature downloads images, automatically from Bing and ... Now, expand the Personalization > Lock Screen settings. Change Background back to Windows Spotlight. Close all windows, sign out ...