Install Lively Wallpaper and open the app. It will display a small window preloaded with animated wallpapers to choose from. You could just grab one of those—some even include customization ...

These animated wallpapers may have a black, blue, green, yellow, red or gray background and display bubbles that subtly move around the screen in varying colors and change opacity at times.

Tom Warren is a senior editor and author of Notepad, who has been covering all things Microsoft, PC, and tech for over 20 years. Microsoft has been working on dynamic animated wallpapers for ...