The quickest way to change your background

On Windows, right-click any empty space on your desktop and select Personalize. Click Background in the left menu, then choose Picture from the dropdown. Click Browse to pick a photo from your computer, or select one of the built-in images Windows offers. On a Mac, open System Settings, click Wallpaper in the sidebar, then click the plus sign to add your own image or choose from Apple's collection.

Both methods take under a minute. The background you set applies only to your user account — other people who log into the same computer will see their own background unless they change it themselves.

Key Takeaways

  • Windows lets you right-click the desktop to reach background settings in one step, while Mac requires opening System Settings first.
  • You can use your own photos, images from your Downloads folder, or the built-in pictures that come with your operating system.
  • Changing your background does not affect your files, security settings, or anything else on your computer — it is purely visual.
  • If you share a computer with other users, each person's background is separate and tied to their own login account.

Finding and selecting a photo on Windows

After you click Browse in the Background menu, a folder window opens. By default it shows your Pictures folder. If your photo is there, click it once to select it, then click Choose picture at the bottom right. The image appears on your desktop when ready.

If your photo is in a different folder — like Downloads or Documents — navigate there using the left sidebar. You can also drag a photo directly from File Explorer onto the desktop background settings window, and Windows will use it. Windows accepts JPG, PNG, BMP, and GIF files.

If you do not have a photo you want to use, Windows includes dozens of built-in backgrounds. In the Background menu, click the dropdown that says Picture and select Slideshow instead. Windows will rotate through a collection of landscape photos every 30 minutes, or you can set the timing yourself.

Finding and selecting a photo on Mac

After you click the plus sign in Wallpaper settings, a file browser opens. Navigate to the folder containing your photo — usually Pictures or Downloads. Click the photo once to select it, then click Add. The background changes when ready.

Mac also includes built-in wallpapers organized by category: Dynamic (images that change based on time of day), Light, Dark, and Collections. Click any category in the left sidebar to see what is available. You can preview a wallpaper by clicking it before you confirm your choice.

Using Windows built-in backgrounds without uploading your own photo

If you do not want to use a personal photo, Windows comes with a collection of high-quality images. In the Background menu, make sure Picture is selected in the dropdown, then scroll down to see the available options. Click any image to preview it, and it becomes your background when ready.

You can also set Windows to cycle through multiple backgrounds automatically. Select Slideshow from the dropdown instead of Picture. Click Browse to choose which folder the slideshow pulls from — you can point it at your Pictures folder, or any other folder on your computer. Use the dropdown below to set how often the image changes: 1 minute, 10 minutes, 30 minutes, 1 hour, or daily.

Adjusting how your photo fits on the screen

Both Windows and Mac let you control how the image is positioned. On Windows, look for the Choose a fit dropdown in the Background menu. Your options are Fill (stretches the image to cover the whole screen, which may crop it), Fit (shrinks the image to fit without cropping, which may leave colored bars on the sides), Stretch (distorts the image to fill the screen), Tile (repeats the image in a grid), and Center (places the image in the middle without resizing).

On Mac, after you select a wallpaper, click the dropdown that says Fill Screen to see other options: Fit in Screen, Stretch to Fill Screen, or Center. The preview updates as you change the setting, so you can see which option looks best with your image.

What to do if your background does not change

If you set a new background and it does not appear, restart your computer first — sometimes the change does not take effect until you log out and back in. On Windows, you can also try right-clicking the desktop again and selecting Refresh to force the display to update.

If the background still does not change, make sure you are logged into the correct user account. Each account on your computer has its own background setting. If you are trying to change the background for a different user, you must log into that account first. On Windows, check that your user account has permission to change settings by opening Settings > Accounts and confirming your account type is Administrator.

Why you might want to change your background regularly

Changing your background does not improve security or protect your data — it is purely a visual choice. However, a background you like can make your computer feel more personal and reduce eye strain if you choose an image with colors that are straightforward on your eyes. Some people use a background with important reminders or information they reference often.

If you share a computer with family members or colleagues, each person can set their own background when they log in. This makes it straightforward to tell at a glance whose account is active, especially on a shared work computer.

Frequently Asked Questions

Can I use a video or animated image as my background?

Windows does not support video backgrounds through the standard settings. Mac does not either. Third-party software exists for both systems, but it uses more battery power and processing resources. For most people, a slideshow of still images is a simpler alternative.

Will changing my background affect my files or passwords?

No. Your background is stored separately from your files, accounts, and security settings. Changing it does not touch anything else on your computer.

What happens to my background if I update Windows or Mac?

Your custom background stays in place after an operating system update. If you used a built-in image, it remains your background unless that specific image was removed in the update, which is rare.

Can I set a different background for each monitor if I have multiple screens?

On Windows, yes — right-click the desktop, go to Personalize > Background, and look for the option to choose which monitor each image appears on. On Mac, each monitor gets the same wallpaper through the standard settings, though third-party tools can change this.

How do I remove a background and go back to a solid color?

On Windows, open Background settings and change the dropdown from Picture to Solid color, then pick a color. On Mac, go to Wallpaper settings and select Colors instead of a wallpaper image.