Windows XP Bliss 4K Wallpaper is a JPG that you can use as your Desktop background. The Bliss wallpaper can be found almost anywhere but is often small and low-quality, while these versions look nicer on modern operating systems. The zip file has 2 copies 2560X1440 and 4089x2726 (Thanks Spartan!) To use the new background (wallpaper), right-click on the image and click on Set as desktop background. To stop using the background, right-click on your Desktop and click on Personalize. Click on one of the available themes, including the previous theme you used. Similar: How to Remove the Shortcut Arrow Icon in Windows 10 & 11 How to Turn the Windows 10 & 11 Desktop Background Image On or Off How to Show Your Windows 10 & 11 Version and Build Number on the Desktop How to Show or Hide Desktop Icons in Windows 10 & 11