The fastest way to change your wallpaper

On Windows, right-click any empty space on your desktop, select Personalize, then click Background. Choose a built-in image or click Browse to pick a photo from your computer. On Mac, open System Settings, go to Wallpaper, and click any thumbnail to set it when ready.

Both systems let you use your own photos instead of the pre-loaded options. The image will stretch or fit to your screen size automatically, though the result depends on whether your photo is wider or taller than your monitor.

Key Takeaways

  • Windows users right-click the desktop and select Personalize, then Background, to reach the wallpaper menu in seconds.
  • Mac users open System Settings, navigate to Wallpaper, and click any image to explore it without restarting.
  • You can use any photo stored on your computer as wallpaper by clicking Browse (Windows) or the plus button (Mac) to select it.
  • If your photo looks stretched or cut off, try a different image or resize it before setting it as wallpaper.
  • Both systems save your choice automatically, so your wallpaper stays the same when you restart your computer.

Changing wallpaper on Windows 10 and Windows 11

Right-click any blank area of your desktop—avoid clicking on icons or the taskbar. A menu will appear with several options. Look for Personalize near the bottom and click it. This opens the Settings app directly to the personalization panel.

In the left sidebar, click Background. You will see a dropdown menu that says Personalize your background. Make sure it is set to Picture (not Solid color or Slideshow). Below that, Windows shows thumbnail previews of built-in wallpapers. Click any one to set it when ready.

To use your own photo, click the Browse button. A file window opens. Navigate to the folder where your photo is stored—usually Pictures or Downloads. Select the image and click Choose picture. The photo becomes your wallpaper right away.

Changing wallpaper on Mac

Click the Apple menu in the top-left corner and select System Settings (or System Preferences on older Macs). In the sidebar, look for Wallpaper and click it. Mac displays all available wallpapers organized by category—Dynamic, Still, and Collections.

Click any thumbnail to set it as your wallpaper when ready. There is no confirmation step; the change happens when ready. If you want to use a photo from your computer, click the plus button at the bottom of the window, navigate to your photo, and click Open.

Mac also offers dynamic wallpapers that change throughout the day. These are marked with a small play icon. Select one to see how it shifts from morning to evening on your screen.

Using your own photos as wallpaper

Any photo on your computer can become wallpaper. The image does not have to be a specific size, but photos that are wider than they are tall (landscape orientation) usually look better on desktop monitors. Portrait-oriented photos may appear stretched or leave blank space on the sides.

On Windows, click Browse in the Background settings and select your photo. On Mac, click the plus button in Wallpaper settings and choose your image. Both systems will automatically fit the photo to your screen. If the result looks distorted, try a different photo or rotate it before setting it as wallpaper.

Common photo locations are the Pictures folder (Windows and Mac), Downloads folder, or any folder you created yourself. If you cannot find your photo, use the search bar in the file window to look for it by name.

What to do if your wallpaper looks stretched or cut off

If your photo does not fit your screen properly, the issue is usually the image dimensions. A photo that is much taller than it is wide will either stretch horizontally or leave blank bars on the sides. A photo that is much wider than it is tall may get cropped at the edges.

The simplest fix is to choose a different photo. If you want to use a specific image, you can resize it using a free tool like Paint (Windows) or Preview (Mac) before setting it as wallpaper. Open the photo, look for a resize or scale option, and make the width and height closer to your monitor's proportions.

Most modern monitors are wider than they are tall, so landscape photos work best. If you are unsure of your monitor size, right-click the desktop on Windows and select Display settings to see your resolution listed at the top.

Wallpaper settings that affect how your image appears

On Windows, after you select a photo, a dropdown menu appears asking how you want the image to fit. The options are Fill (stretches the photo to cover the whole screen), Fit (shrinks the photo to fit without cropping), Stretch (distorts the photo to match your screen exactly), Tile (repeats the image in a grid), and Center (places the photo in the middle with blank space around it).

Fill is the default and works well for most photos. Fit is useful if you want to see the entire photo without stretching. Stretch often looks poor unless your photo is already close to your screen size. Try each option to see which looks best with your image.

Mac does not offer these options—it automatically centers and scales your photo to fit. If you need more control, you can resize the photo itself before setting it as wallpaper.

Setting different wallpapers for multiple monitors

If you have two or more monitors connected to your Windows computer, you can set a different wallpaper on each one. Open the Background settings as usual, select your first photo, and choose which monitor it appears on from the dropdown menu labeled Choose a display. Then select your second photo and assign it to the second monitor.

Mac does not support different wallpapers on multiple monitors through the standard settings. If you need this feature on Mac, you will need to use a third-party app from the App Store.

Frequently Asked Questions

Can I set a video or animated image as my wallpaper?

Windows 11 allows animated wallpapers through the Microsoft Store, but they require a compatible app. Mac does not support video wallpapers natively. Both systems support dynamic wallpapers that change based on time of day, which you can find in the built-in wallpaper collections.

What image formats work as wallpaper?

Both Windows and Mac accept JPG, PNG, and BMP files. These are the most common photo formats. If your image is in a different format like GIF or TIFF, you can convert it to JPG using free online tools or built-in apps like Paint (Windows) or Preview (Mac).

Will changing my wallpaper slow down my computer?

No. Your wallpaper is a static image file that uses minimal system resources. Even if you change it daily, it will not affect your computer's speed or performance.

How do I remove my custom wallpaper and go back to the default?

On Windows, open Background settings and click any of the built-in wallpapers. On Mac, open Wallpaper settings and select one of the default options. Your custom photo will no longer be used.

Can I schedule my wallpaper to change automatically?

Yes. On Windows, in the Background settings, change the dropdown from Picture to Slideshow. Select a folder of photos and choose how often you want the wallpaper to change. Mac does not have a built-in slideshow feature, but you can use a third-party app from the App Store.