Dynamic Theme is a free Windows 10 app which enables using Bing or Windows Spotlight images as desktop wallpaper, on the Windows Lock Screen, and more.

Installation is simple, and entirely safe. Dynamic Theme doesn’t change any of your settings immediately, and so you’re not left wondering how to get everything back to normal.

When we did launch the app, its straightforward interface looked much like one of the built-in Windows 10 settings pages. A left-hand sidebar listed the main function areas – “Background”, “Lock screen”, “Daily Bing image”, “Daily Windows Spotlight image” – and clicking any of these displays related options.

Selecting “Background” enables setting your desktop wallpaper to the latest Bing or Windows Spotlight image (it updates automatically); a single Bing or Spotlight image (it stays on that picture until you decide otherwise); any single image on your PC, or a slideshow of images from your PC.

The familiar interface looks like a standard Windows 10 applet

The “Lock Screen” area gives you the same choices for your lock screen.

The program can collect Bing and Windows Spotlight images, save them locally, display a preview when new images arrive, even use the latest image as the dynamic tile of an application.

All of these features are initially disabled, and you can choose some or all of them as required.

Even if you’re not interested in changing your wallpaper or lock screen, for example, the app could still be useful for downloading Bing or Windows Spotlight images and storing them locally.

Whatever you decide, Dynamic Theme can synchronise its settings across your other Windows 10 devices for extra ease of use.

Dynamic Theme is a free app for Windows 10.