How do I change my Windows 11 wallpaper.
Once you have access to Windows 11, here’s how to change your wallpaper.
Click the on screen Windows button or press the Windows button on your keyboard.
Go to Personalization.
Select an already available image or click Browse to search for an image you’ve saved to your PC.
Changes to the default wallpaper only scratch the surface of the design and feature changes found on the Windows 11 desktop.
For example, you’ll also find ways to customize your Windows 11 desktop with widgets, virtual desktops and Snap Group layouts.
Ref: C Net