Or maybe you just like attractive, high-resolution desktop wallpapers and you want to make a change? It turns out that Microsoft's design team has rendered an updated 4K version of the default Win ...

and it's the first one Microsoft is charging for (a modest 99 cents). For those with desktop or laptop PCs with 2K or 4K resolutions (or the odd Surface 3000 x 2000) wallpapers in 4K look amazing.