Q. I just upgraded to windows 10 from windows 8.1. I had created my own theme in windows 8.1 with my own pictures, I would occasionally add or remove pictures from my custom theme. In windows 10, my theme is still there but I can’t figure out how to add or remove certain photos. I also don’t have the original pictures on my computer because I dragged and dropped them into the theme on windows 8.1Where are the themes’ pictures files stored? Or how can I edit my theme as I did in Windows 8.1?

Answer.

You added in a “/” there.  You need to enter exactly

  %LocalAppData%\Microsoft\Windows\Themes

as the path you’re trying to go to in the File Explorer address bar if you want to do it that way.  Or you can run exactly:

  control /name Microsoft.Personalization /page pageWallpaper

from a Win+R (Run) prompt to select/unselect sub-photos in the theme.