I'm stuck with the irritating lock screen every time I login so I might as well configure it to show a photo of my choice. I set the lock screen to show a slide show from one of my photos folders. This works when I lock the screen using Ctrl / Alt / Del but when I login I still get the blue background pre-selected by Windows as shown below. How do I configure Windows to show a slideshow from my folder at the login screen? There is nothing set in Group Policy to change the lock screen behaviour.
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