Most of these are good to use with your 4K desktop, laptop display or smartphone. Today's theme is sports and car-themed wallpapers, also available as .zip file download.

Along with the theme, you may also wish to download our I’m A PC Wallpaper Pack, which has two more sets of variants of the wallpapers. That is, a set of 4 with the border, and a set of 4 ...

C:\Users\Username\AppData\Local\Microsoft\Windows\Themes\ Here you will see a bunch of theme folders. Select the theme folder, whose wallpapers you need, and open the DesktopBackground folder.

You still won’t get super-HD (as in, 4K-friendly) wallpapers if you opt for Bing or Windows Spotlight as a source, but that’s more Microsoft’s fault than anyone else’s.