Windows: Set New Desktop Theme
    This guide will help employees set a new desktop theme and background images on their computer's desktop. 
Applies To: Windows 10 and Windows 11
Guide
- Go to the Start Menu
 or 
 
- Click on Settings
 or 
 
- Go to Personalize
 
- Go to Themes
 
- Click on one of the theme thumbnails to apply the Theme

Your desktop background and overall system theme should change to what you have selected.