The fastest 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 Mac, open System Settings, click Wallpaper in the sidebar, then click the image you want and select Set Desktop Picture. Both take about 30 seconds once you know where to look.

If you want to use a photo you already have saved, make sure you know where it lives on your computer first — usually in Pictures, Downloads, or a folder you created. The process is the same whether the image is a photo you took or one you found online.

Key Takeaways

  • Windows users right-click the desktop, select Personalize, then Background to change the image in seconds.
  • Mac users open System Settings, find Wallpaper, and click the image they want to use.
  • You can use photos stored anywhere on your computer, or choose from built-in images that come with your operating system.
  • The background change takes effect when ready and does not affect any of your files or programs.
  • If you want different backgrounds on multiple monitors, Windows lets you set a different image for each one.

Changing your background on Windows 10 and 11

Start by right-clicking on any blank area of your desktop — not on a file or folder icon, but on the empty space itself. A menu will pop up. Look for the word Personalize near the bottom and click it. A window will open showing your current background and several options.

In the left sidebar, click Background. You will see a dropdown menu that says Picture, Solid color, or Slideshow. Leave it on Picture unless you want a solid color or rotating images. Below that, you will see a Browse button. Click it to open a file browser where you can navigate to any photo on your computer. Select the image you want and click Choose picture. The background updates when ready.

If you do not have a photo in mind, scroll down in the Personalize window to see Recent images or Suggested images. Windows also includes built-in backgrounds you can use without browsing — just click one and it applies right away. You can change your background as often as you like with no limit.

Changing your background on Mac

Click the Apple menu in the top-left corner and select System Settings (or System Preferences on older Macs). In the sidebar on the left, look for Wallpaper and click it. You will see a grid of image categories like Desktop Pictures, Nature, Abstracts, and Solid Colors.

Click any category to see the images inside it. When you find one you like, click it once to select it, then click the Set Desktop Picture button that appears. The background changes when ready. If you want to use a photo you took or downloaded, click the + button at the bottom of the window, navigate to the folder where your photo is saved, select it, and click Open. Then click Set Desktop Picture to explore it.

Using your own photos as a background

Both Windows and Mac let you use any photo stored on your computer. The photo can be a picture you took with your phone or camera, something you downloaded from the internet, or any image file saved in your Pictures folder or anywhere else. The image does not need to be a certain size — your computer will automatically fit it to your screen.

On Windows, when you click Browse, a file window opens. Navigate to the folder where your photo is saved — usually Pictures, Downloads, or a folder you created yourself. Click the photo once to select it, then click Open. On Mac, use the + button to browse to your photo, select it, and click Open. Both systems accept common image formats like JPG, PNG, and BMP.

Setting different backgrounds on multiple monitors

If you have two or more monitors connected to your Windows computer, you can set a different background on each one. Right-click the desktop and select Personalize, then Background. Instead of clicking Browse, look for the option that says Choose a picture for each of your displays or similar wording (the exact phrase varies by Windows version). Click it, then select a different image for each monitor from the dropdown menus.

Mac does not offer per-monitor backgrounds in the same way. If you have multiple displays on a Mac, the same background appears on all of them. You can change the background for all displays at once through System Settings, but you cannot assign different images to each screen.

Troubleshooting background changes that do not work

If you change your background but it does not appear, first check that you clicked the right button to confirm the change. On Windows, make sure you clicked Choose picture after selecting the image. On Mac, verify that you clicked Set Desktop Picture. If the image still does not show, try restarting your computer — sometimes the display needs a refresh.

If the image appears stretched, blurry, or cut off, the photo may be a very different size than your screen. Windows and Mac both have options to fit, fill, or stretch the image to your screen. In Windows Personalize settings, look for a dropdown that says Choose a fit and try Fill or Fit. On Mac, right-click the wallpaper in System Settings and look for scaling options. Choosing Fill screen usually gives the best result.

Common mistakes to avoid

Do not assume you need to read special software or use an app to change your background — the built-in tools in Windows and Mac do everything you need. Do not right-click on a file or folder icon expecting to see Personalize; you must right-click on empty desktop space. Do not worry about file size; your computer handles large photos without slowing down.

Do not use an image that is extremely small (smaller than your screen resolution) unless you are okay with it appearing pixelated or tiled. If you read a background from the internet, make sure it is saved to your computer first before you try to use it — you cannot select an image directly from a web browser. If you change your mind, you can always switch back to a previous background or choose a different one; there is no limit to how many times you can change it.

Frequently Asked Questions

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

Windows 11 supports animated wallpapers through the Microsoft Store, but the standard Personalize menu only accepts still images. Mac does not support animated backgrounds natively. If you want movement on your desktop, you would need to read a third-party app, but the built-in tools work only with photos and static images.

What happens to my background if I update my operating system?

Your background choice stays in place after an update. Windows and Mac both preserve your personalization settings when you install a new version of the operating system. You will not lose your background image or have to set it again.

Can I schedule my background to change automatically?

Yes, on both Windows and Mac. On Windows, go to Personalize, click Background, and select Slideshow from the dropdown instead of Picture. Choose a folder full of images and set how often you want it to change. On Mac, open System Settings, click Wallpaper, select an image, and look for a checkbox that says Change picture to set it to rotate automatically.

Does changing my background use more battery or slow down my computer?

No. A static background image uses almost no power or processing. Even a slideshow that rotates images every few minutes has minimal impact on battery life or speed. You will not notice any slowdown from changing your background.

Where do I find the built-in backgrounds that come with Windows or Mac?

On Windows, open Personalize and look under Background for sections labeled Recent, Suggested, or Windows Spotlight — these show built-in images you can use without browsing. On Mac, open System Settings, click Wallpaper, and you will see categories like Desktop Pictures, Nature, and Abstracts that contain images that came with your Mac.