it’s possible for you to do that and pretty more with this trick.
Once this is open, find the field that reads Windows Spotlight, and choose the box.
In the picture you’re free to display anything you want from your album.
This will block the Spotlights ability to use your lockscreen.
Some people out there may actually like the ads being shown on their lockscreens.
For them, Microsoft offers a option to tailor the ads based on their interests instead of random ones.
and Not a fan..
source: www.techworm.net