Windows does not play video wallpapers on its own, so you need a small wallpaper player app. Once it is installed, setting a live wallpaper from this site takes about a minute.

Option 1: Lively Wallpaper (free)

1. Install Lively Wallpaper from the Microsoft Store or from its official website.
2. Open Lively and press the plus button to add a wallpaper.
3. Drag the video you downloaded into the window, or choose it with Browse.
4. Select it in your library to apply it to the desktop.

Option 2: Wallpaper Engine (paid)

1. Open Wallpaper Engine and go to Open Wallpaper, then Open from file.
2. Pick the video file and confirm.
3. Press OK to set it as your wallpaper. You can adjust scaling and playback speed in the settings.

Tips for smooth playback

• Choose a resolution that matches your screen. A 1080p screen does not need a 4K file.
• On a laptop, set the app to pause when the battery is low or when another app is full screen.
• If your PC feels slow, try a shorter or lower-resolution wallpaper. See the performance guide.

Troubleshooting

If the wallpaper shows a black screen, update your graphics driver and make sure the file finished downloading. If the video does not open, try converting it to MP4 with H.264.