How to Enable or Disable the Lock Screen Slideshow on Windows 8.1
In order to change the lock screen settings we first need to head into PC & devices.
Then click on the Lock screen option on the left hand side.
This should have bought up all the settings for the lock screen on the right hand side. If you look mid way down you will see the setting that controls whether to play a slide show of your pictures on the lock screen, to turn it off simply toggle the setting to the off position. We actually enjoy this feature and left it on, we also opted to only show the lock screen after 15 minutes of inactivity.
That’s really all there is to know about managing the lock screen slide show feature.