In particular, the website features a 4K version of the iconic default wallpaper of Windows XP, known as “Bliss.” This wallpaper, which features a rolling green hill and a vibrant blue sky.

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.

As to why Microsoft is charging 99 cents for the pack it is likely to do with licensing. Last I checked, Microsoft is not operating a deep-space telescope, and such images in 4K are rarely free ...