The simplest way to change your background depends on which operating system you use

Your desktop background is the image or color that appears behind all your open windows and icons. Changing it takes less than a minute on any system — you just need to know where the settings live. On Windows, you go through Settings. On Mac, you use System Preferences. On Linux, the route depends on which desktop environment you have installed, but the principle is the same: right-click the desktop or open a display settings panel.

You can use any image file you already have, read a new one from the internet, or choose a solid color. The operating system stores your choice and keeps it as your background until you change it again.

Key Takeaways

  • On Windows 10 or 11, open Settings, go to Personalization, then Background, and choose an image file from your computer or pick a solid color.
  • On Mac, open System Preferences, click Desktop & Screen Saver, then Desktop, and select an image or color from the library or your own files.
  • On Linux, right-click your desktop and look for "Change Background" or "Properties" — the exact option name varies by desktop environment.
  • You can use any image file format your system supports: JPG, PNG, BMP, and GIF are standard across all operating systems.
  • If you want the background to change automatically on a schedule, both Windows and Mac have built-in slideshow features in their background settings.

Changing your background on Windows 10 and 11

Open the Start menu and type "Settings" into the search box, then click the Settings app. Once it opens, click "Personalization" in the left sidebar. You will see "Background" listed as the first option — click it.

You now have three choices. The first is "Picture" — click the dropdown that says "Picture" and Windows will show you a gallery of built-in images. Click any one to make it your background when ready. The second choice is "Solid color" — click that dropdown and pick a single color instead. The third is "Slideshow" — this cycles through multiple images on a schedule you set.

If you want to use an image you already have on your computer, click "Browse" under the Picture option. Navigate to the folder where your image lives, select it, and click "Choose picture." 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 and select "System Preferences" (on newer Macs, this is called "System Settings"). Look for "Desktop & Screen Saver" and click it.

Click the "Desktop" tab at the top. On the left side, you will see a list of image libraries — "Desktop Pictures," "Colors," "Solid Colors," and any folders you have created. Click any library to see the images inside it. Click an image once to preview it, and it becomes your background when ready.

To use your own image, click the folder icon at the bottom of the library list and navigate to the image file on your computer. Select it and it will be set as your background. If you want the background to change automatically, click the "Change picture" checkbox and set how often you want it to switch — every 5 seconds, every minute, every hour, or every day.

Changing your background on Linux

The process on Linux varies depending on which desktop environment you are running — GNOME, KDE, Cinnamon, XFCE, and others all have slightly different interfaces. The most common approach is to right-click on an empty area of your desktop (not on an icon or window). A menu should appear with an option like "Change Background," "Properties," or "Desktop Settings."

If right-clicking does not work, open your system settings or control panel. Look for "Appearance," "Display," or "Desktop" settings. Once you find the background section, you can select from built-in images or browse to an image file on your computer. Click or double-click the image you want, and it will be set as your background.

If you are not sure which desktop environment you are using, open a terminal and type echo $XDG_CURRENT_DESKTOP then press Enter. The output will tell you which one you have. You can then search for the specific steps for that environment.

Using your own images as a background

Any image file on your computer can become your background — you do not have to use the built-in galleries. Common image formats that work on all operating systems are JPG, PNG, BMP, and GIF. If you have an image in a different format, you can convert it using free tools like GIMP or online converters, though this is rarely necessary.

When you choose an image, the operating system will scale it to fit your screen size. If the image is smaller than your screen, it may look blurry or stretched. If it is much larger, the system will shrink it down. For the best result, use an image that is close to your screen's resolution — for example, 1920 × 1080 for a standard monitor, or 2560 × 1440 for a higher-resolution display.

You can organize your images into a dedicated folder before you start, which makes it easier to find them when you are changing your background. Many people create a folder called "Backgrounds" or "Wallpapers" in their Pictures directory and keep all their background images there.

Setting up automatic background changes

Both Windows and Mac let you create a slideshow that changes your background on a schedule. On Windows, go to Settings > Personalization > Background, select "Slideshow" from the dropdown, then click "Browse" to choose a folder full of images. Set how often you want the background to change — every minute, every 10 minutes, every hour, or every day. Windows will cycle through all the images in that folder in order.

On Mac, open System Preferences > Desktop & Screen Saver, click the Desktop tab, select a folder of images from the library list, then check the "Change picture" box. Choose your interval from the dropdown — every 5 seconds, every minute, every hour, or every day. Mac will randomly select images from the folder rather than cycling through them in order.

On Linux, the slideshow feature depends on your desktop environment. GNOME does not have a built-in slideshow, but KDE and Cinnamon do. Check your desktop environment's documentation or settings panel for the option.

Troubleshooting background changes that do not stick

Sometimes you set a background and it reverts to the default the next time you restart your computer. This usually happens because a setting is overriding your choice, or because the image file is in a location the system cannot access.

On Windows, make sure the image file is not in a temporary folder or on an external drive that might not be available at startup. Move it to a permanent location like your Pictures folder. If you are using a network drive or cloud storage folder, the system may not be able to load it before you log in.

On Mac, the same rule applies — keep your background image in a location that is always available, like your Pictures folder or Desktop. If you are using an image from iCloud Drive, make sure it is downloaded to your computer, not just stored in the cloud.

On Linux, check that the image file has read permissions for your user account. If you are not sure, right-click the image file, select Properties or Permissions, and make sure your user can read it.

Frequently Asked Questions

Can I use a video as my background instead of a static image?

Windows 11 supports video backgrounds, but you need to use the Microsoft Store app called "Video Wallpaper" or a third-party tool. Mac and Linux do not have built-in video background support, though third-party applications exist for both. For most users, a slideshow of images is simpler and uses less battery power.

What happens if I delete the image file after I set it as my background?

Your background will disappear or revert to the default the next time you restart. The operating system does not copy the image into a system folder — it just remembers the location of the file. Always keep your background images in a permanent location on your computer.

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

Yes. On Windows, right-click the desktop, select "Personalize," go to Background, and you will see an option to choose which monitor gets which image. On Mac, you can set different backgrounds by opening System Preferences for each display separately. On Linux, this depends on your desktop environment — GNOME and KDE both support it, but the steps vary.

Is there a way to automatically read new backgrounds from the internet?

Windows 10 and 11 have a "Windows Spotlight" feature that automatically downloads new images from Microsoft. Turn it on in Settings > Personalization > Lock screen, then set your lock screen to "Windows Spotlight." Mac does not have an equivalent built-in feature, but you can subscribe to wallpaper services that read new images to a folder, then set that folder as a slideshow.

Why does my background look pixelated or blurry?

The image is probably smaller than your screen resolution. When the operating system scales it up to fill your screen, it stretches the pixels and makes them visible. Use an image that matches or exceeds your screen size — check your display settings to find your resolution, then look for background images at that size or larger.