You can choose them from the Windows wallpaper library ... There are several wallpaper sizes, 1920×1080 pixels: FHD, 2560×1440 pixels: QHD, 3840×2160 pixels: 4k. 1280×720 pixels: HD and ...
Former Microsoft designer shares unreleased Windows 11 wallpapers, including Live designs. Unreleased wallpapers highlighted key design changes like a centered Start menu in Windows 11. Download ...