The fastest way to change your wallpaper depends on your device
On Windows 10 or 11, right-click any empty space on your desktop, select "Personalize," then click "Background" in the left menu. Choose a built-in image, a solid color, or browse to a photo you've saved on your computer. Click "Choose a photo" to pick from your own files, then select the image and close the settings window—the change takes effect when ready.
On Mac, open System Preferences (or System Settings on newer versions), click "Desktop & Screen Saver," then select "Desktop." Choose from Apple's built-in images or click the plus sign to add your own photo. The wallpaper updates as soon as you select it.
On iPhone or iPad, open Settings, tap "Wallpaper," then "Add New Wallpaper." Pick from Apple's collections or "Photos" to use your own image. You can set it for the lock screen, home screen, or both. On Android, long-press an empty area of your home screen, tap "Wallpapers," and choose from your phone's built-in options or your photo library.
Key Takeaways
- Windows and Mac both let you change wallpaper through their settings menus in under a minute, using either built-in images or photos you own.
- On phones and tablets, you access wallpaper settings through the main Settings app, not through the home screen itself.
- You can use any image file you own—a photo you took, a downloaded picture, or an image from the internet—as long as it's saved to your device.
- Most devices let you set different wallpapers for your lock screen and home screen at the same time.
Finding and saving images to use as wallpaper
If you don't want to use your device's built-in images, you'll need to save a photo to your computer or phone first. You can use any image you've taken yourself, downloaded from the internet, or received from someone else. On Windows, save the image to your Pictures folder (or anywhere you can find it). On Mac, the same applies—save it anywhere you can locate it later.
When you're changing your wallpaper and browsing for a file, you'll navigate to wherever you saved the image. The image can be a .jpg, .png, or most other common picture formats. If you read an image from a website, right-click it, select "Save image as," and choose where to save it on your device.
Adjusting how your wallpaper displays
Windows and Mac both offer options for how the image fills your screen. In Windows, after selecting your image, you'll see a dropdown menu labeled "Choose a fit"—options include "Fill" (stretches the image to cover the screen), "Fit" (shows the whole image without stretching), "Stretch" (distorts the image to fill the screen), "Tile" (repeats the image), and "Center" (places it in the middle with empty space around it).
On Mac, you can right-click the selected image and choose how it scales. "Fill screen" stretches it to cover everything, while other options preserve the image's original proportions. Choose whichever looks best with your image—a photo usually looks better with "Fill," while a graphic or logo might look better with "Fit."
Setting different wallpapers for multiple monitors
If you use more than one monitor on Windows, you can set a different wallpaper for each one. In the Personalize menu, select your image, then right-click it and choose "Set for monitor 1," "Set for monitor 2," and so on. You can also choose to span one image across all monitors by selecting "Span" from the fit dropdown.
On Mac with multiple displays, the wallpaper setting applies to all connected monitors at once—you cannot set different images for each display through the standard settings. If you need different wallpapers on each monitor, you'll need third-party software.
Troubleshooting when your wallpaper won't change
If you change your wallpaper but it reverts to the default, check whether your device is using a screensaver or lock screen that's covering it. On Windows, open Settings and search for "screensaver" to turn it off or set it to "None." On Mac, go to System Preferences, click "Desktop & Screen Saver," then the "Screen Saver" tab and set it to "Start after: Never."
If the image file itself won't load, make sure the file still exists where you saved it—if you deleted it or moved it to a different folder, Windows and Mac may no longer find it. Try selecting the image again and browsing to its current location. If the file is corrupted or in an unsupported format, try a different image.
On phones, if the wallpaper doesn't update after you set it, try restarting your device. If a specific image won't load, delete it and try a different one—the file may be damaged or too large for your phone to use.
Using live wallpapers and dynamic backgrounds
Windows 11 and newer versions of Mac both offer animated or dynamic wallpapers that change throughout the day or respond to your device's settings. On Windows 11, some built-in images are animated—when you select them, you'll see a small play icon. On Mac, the "Dynamic" option in the Desktop & Screen Saver menu shows wallpapers that shift color and appearance based on the time of day.
iPhones and some Android phones also support live wallpapers—animated images that move or respond to touch. On iPhone, these appear in the Wallpaper menu under "Live" or specific collections. On Android, the option varies by manufacturer, but you can usually find live wallpapers in the Wallpapers section or read them from the Google Play Store.
Frequently Asked Questions
Can I use any image as my wallpaper?
Yes, as long as the image file is saved on your device and in a common format like .jpg or .png. You can use photos you took, images you downloaded, or pictures someone sent you. The image doesn't need to match your screen's exact size—your device will scale it to fit.
What happens if I delete the original image file after setting it as wallpaper?
On Windows and Mac, the wallpaper will disappear or revert to default because the system is pulling the image from that file location each time it displays. Keep the original file saved. On phones, the image is usually stored in the wallpaper system, so deleting the original photo won't affect it.
Why does my wallpaper look blurry or stretched?
This usually happens when the image is much smaller than your screen resolution. Try a different "fit" option—"Fit" or "Center" may look better than "Fill" if your image is small. For the best appearance, use an image that's at least as wide and tall as your screen resolution.
Can I set a different wallpaper for each workspace on Mac?
No, Mac's built-in settings explore the same wallpaper to all spaces and desktops. You would need third-party software to assign different wallpapers to different workspaces.
How do I change my lock screen wallpaper separately from my home screen?
On iPhone, when you add a new wallpaper, you'll see options to set it for "Lock Screen," "Home Screen," or "Both." Choose "Lock Screen" to change only the lock screen. On Android, this varies by manufacturer—some phones let you set them separately in Wallpapers settings, while others explore the same image to both.