: Go to Settings > Personalization > Background . Ensure the "Choose a fit" option is set to "Fill" to ensure the 3840x2160 image covers your entire 4K display without black bars.
: A free alternative on the Microsoft Store. You can download an MP4 loop from sources like Reddit and drag it into the Lively Wallpaper app to set it as your background. 3. How to Set for Best Quality 3840x2160 Valorant Wallpaper: Omen 4K">
For standard static backgrounds, use these reputable wallpaper sites that offer direct 4K downloads: : Go to Settings > Personalization > Background