The free Bing Wallpaper app lets you refresh your PC's ... including whether the company is providing 4K wallpapers for high-resolution displays. But everything looks crisp and clear on my screen.

Microsoft Design - Wallpapers https://wallpapers.microsoft.design/ After accessing the public page, scroll down the screen. Scroll to the bottom of the screen and you will find 'Windows XP Wallpaper'.

Today I stumbled upon Microsoft’s 4K rendering of the Windows XP wallpaper Microsoft Design site has a ton of attractive wallpapers, retro and otherwise.