If you are looking for fresh visuals, several reputable sites offer high-quality wallpapers compatible with Windows 8.1:
Windows 8.1 Wallpaper = Loss of Shaprness + Quality - Microsoft Q&A Backgrounds 8.1
: From this menu, you can select from various pre-installed background patterns or change the background and accent colors. If you are looking for fresh visuals, several
Right-click an empty space on your desktop and select . Click on Desktop Background at the bottom of the window. Backgrounds 8.1