wallpaper keeps switching to black then back randomly

[marknader11]

my computers wallpaper keeps switch to black whenever i open a program and switches back on at random times does anyone know what can cause this?

 

[scout_03]

se this to made it fix on the wall paper you choose https://www.sevenforums.com/tutorials/47294-desktop-background-wallpaper-change-windows-7-starter.html