Set a single wallpaper
- Right-click the image in File Explorer and choose “Set as desktop background”.
- Or open Settings → Personalization → Background, choose Picture and browse to the file.
- Under “Choose a fit for your desktop image”, pick Fill.
Rotate a folder as a slideshow
- If your wallpapers came as a zip, right-click it and choose Extract All.
- Open Settings → Personalization → Background and set “Personalize your background” to Slideshow.
- Click Browse and pick the folder.
- Choose how often to change the picture and turn on Shuffle if you like.
Different wallpapers on multiple monitors
In Settings → Personalization → Background, choose Picture, then right-click a recent image and pick which monitor to set it for. A slideshow rotates across all monitors.
Choosing a fit
Fill covers the screen and trims a little from the edges if the shapes differ — the best choice for most images. Fit shows the whole image with bars. Stretch distorts the image, so avoid it. A wallpaper at least as large as your monitor’s resolution stays sharp; 3840 × 2400 covers 4K monitors and smaller.