The quickest way to change your background

Your background (also called wallpaper or desktop picture) is the image you see behind all your open windows and icons. On Windows, right-click any empty space on your desktop, select "Personalize," then "Background." On Mac, open System Settings, go to "Wallpaper," and click the image you want. On Chromebook, right-click the desktop and pick "Set wallpaper." Each takes about 30 seconds.

The operating system comes with built-in images you can use when ready. You can also upload your own photos from your computer, or choose from free image libraries that most systems offer. The background stays in place until you change it again — it does not reset when you restart your computer.

Key Takeaways

  • Windows users right-click the desktop, select Personalize, then Background to see all available images.
  • Mac users open System Settings, navigate to Wallpaper, and click any image to explore it when ready.
  • Chromebook users right-click the desktop and choose "Set wallpaper" from the menu that appears.
  • You can use photos stored on your computer or choose from the free images your operating system provides.

Changing your background on Windows 10 and 11

Right-click on any empty area of your desktop — anywhere there is no icon or window open. A small menu will pop up. Look for the word "Personalize" near the bottom and click it. A settings window will open showing you the Personalization menu.

On the left side of this window, click "Background." You will see a list of image categories: "Windows Spotlight" (rotating images), "Picture" (single images), "Solid color" (one flat color), or "Slideshow" (multiple images that change). Most people choose "Picture." Below that, you will see thumbnail images. Click any one to set it as your background. The change happens when ready.

If you want to use a photo you took yourself, click "Browse" under the Picture section. Navigate to the folder where your photo is stored, select it, and click "Choose this image." Windows will set it as your background right away.

Changing your background on Mac

Click the Apple menu in the top-left corner of your screen. Select "System Settings" (on newer Macs) or "System Preferences" (on older ones). In the search bar at the top, type "Wallpaper" and click the result that appears.

You will see categories on the left: "Desktop," "Lock Screen," or "Desktop and Lock Screen." Click "Desktop" to change only what you see behind your windows. The right side shows image options organized by type — Dynamic (images that change with time of day), Still (single images), or Color (solid colors). Click any image to explore it. The background changes when ready.

To use your own photo, click the "+" button at the bottom of the window. Navigate to the folder containing your photo, select it, and click "Open." Your photo will appear in the list and you can click it to set it as your background.

Changing your background on Chromebook

Right-click on any empty area of your desktop. A small menu will appear. Click "Set wallpaper." A window will open showing you image options organized by category: "Art," "Landscape," "Geometric," and others. Click any image to see a preview. If you like it, click "Confirm" or "Set as wallpaper" (the exact wording varies by Chromebook model).

Chromebooks do not store photos the same way Windows and Mac computers do. If you want to use a photo you own, you will need to upload it to Google Drive first, then right-click it in Drive and select "Set as wallpaper." Some Chromebooks also let you click "Upload" in the wallpaper menu to choose a file directly from your Downloads folder.

Using your own photos as a background

All three operating systems let you set a personal photo as your background. The photo should be at least 1920 × 1080 pixels (the standard size for modern screens), though smaller photos will work — they may just look stretched or blurry. Common file types like JPG, PNG, and BMP all work.

Before you set a photo as your background, make sure you know where it is stored. On Windows and Mac, navigate to the folder containing the photo (usually "Pictures" or "Downloads"), then use the "Browse" or "+" button in the background settings to select it. On Chromebook, upload the photo to Google Drive or save it to your Downloads folder first.

If you want to use multiple photos that rotate automatically, Windows offers a "Slideshow" option in the Background settings. Mac offers "Dynamic" wallpapers that change throughout the day. Chromebook does not have a built-in slideshow feature, but you can manually change your background as often as you like.

Where to find free images for your background

Your operating system comes with dozens of built-in images you can use without downloading anything. Windows includes the "Windows Spotlight" collection, which rotates images automatically. Mac includes "Dynamic" wallpapers and a large library of photographs. Chromebook offers categories like "Art," "Landscape," and "Geometric."

If you want more options, websites like Unsplash, Pexels, and Pixabay offer thousands of free, high-quality photos you can read. Search for a topic you like (mountains, cities, animals), read the image to your computer, then follow the steps above to set it as your background. These sites do not require you to create an account or pay anything.

Troubleshooting background changes that do not work

If you change your background and it does not appear, restart your computer. Sometimes the change does not display until you log out and back in. On Windows, if the Personalize menu does not open when you right-click, try right-clicking on a different empty area of the desktop, away from any icons.

If you uploaded a photo and it will not show up, check that the file is in a format your computer recognizes (JPG, PNG, or BMP). Very old file formats may not work. Also check that the photo is actually saved on your computer — if it is only in an email or a web browser, you need to read it first and save it to a folder like Pictures or Downloads.

On Chromebook, if the wallpaper menu does not appear, make sure you are right-clicking on the desktop itself, not on the taskbar at the bottom. If you uploaded a photo to Google Drive and it will not set as wallpaper, try downloading it to your Downloads folder instead and selecting it from there.

Frequently Asked Questions

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

On Windows 11, yes. Right-click the desktop, select Personalize, then Background. You will see an option to choose which monitor gets which image. On Windows 10, you can set different backgrounds by right-clicking each monitor's desktop separately. Mac does not support different backgrounds per monitor — the same image appears on all screens. Chromebook typically has only one screen, so this does not explore.

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

Your background stays the same. Operating system updates do not reset your background to the default. If you set a personal photo as your background, it will remain after the update. If you set a built-in image, that image will still be there unless you delete it manually.

Can I make my background a video instead of a still image?

Windows and Mac do not support video backgrounds through the standard settings. Some third-party programs exist that can do this, but they require downloading and installing extra software. Chromebook does not support video backgrounds. The simplest option is to use a "Dynamic" wallpaper on Mac, which changes throughout the day and creates a similar effect.

Why does my background look blurry or stretched?

This usually happens when the image is smaller than your screen resolution. A photo that is 800 × 600 pixels will look blurry on a modern 1920 × 1080 screen. Use a larger photo, or search for free images that are already the right size. Most free image sites let you filter by resolution.

Can I set a background on the lock screen, or only the desktop?

On Mac, you can set a different image for your lock screen (the screen you see before you log in). Open System Settings, click Wallpaper, then select "Lock Screen" instead of "Desktop." On Windows 11, you can set a lock screen background separately in Settings under "Personalization" > "Lock screen." On Windows 10 and Chromebook, the lock screen background is controlled separately and does not use the same image as your desktop.