Here is a simple process to update your background on your windows desktop computer.
STEP 1
Right click on the desktop and select "Personalize" - this will prompt your windows deice to open a settings menu where you can select your new wallpaper and choose the options to tile, center or stretch it to fit your device. Simply select "browse" to choose a custom image not available in the windows library. From there you can locate the file you wish to use as your desktop wallpaper.
Also note, there is an option for "slideshow" that you can display multiple wallpapers throughout the day in intervals on your windows desktop.
STEP 2
Select the "Save" button to finalize and update your wallpaper on your desktop.