The fastest way to change your MacBook wallpaper

Open System Settings, click Wallpaper in the left menu, then select a new image from the built-in collection or upload your own photo. The change takes effect when ready on your desktop and lock screen. The whole process takes under a minute.

Your MacBook stores wallpaper settings separately for your desktop (the background you see when no windows are open) and your lock screen (what appears before you type your password). You can use the same image for both or pick different ones. Either way, you control both from the same place in System Settings.

Key Takeaways

  • System Settings is where you change wallpaper on any recent MacBook — not the Finder, not Preferences, but the Settings app in your Applications folder.
  • You can use Apple's built-in images or upload any photo from your computer, including screenshots, photos from your camera roll, or images you downloaded.
  • Your lock screen and desktop can have different wallpapers, and you choose both from the same Wallpaper menu.
  • If you want the same wallpaper on multiple Macs, you can sign into the same Apple ID on each one and the setting will sync automatically.

Opening System Settings and finding the Wallpaper menu

Click the Apple menu in the top-left corner of your screen, then select System Settings. On older MacBooks running macOS Big Sur or earlier, this was called System Preferences, but the steps are the same.

Once System Settings opens, look at the left sidebar. Scroll down until you see Wallpaper, then click it. You will see two preview boxes — one labeled Desktop and one labeled Lock Screen. Below those are thumbnails of available images organized by category: Nature, Solid Colors, Collections, and any folders you have created.

Choosing from Apple's built-in wallpapers

Click any category to see the images inside. For example, clicking Nature shows landscapes, forests, and water scenes that come with your MacBook. Click any image once to preview it in the desktop box above. If you like it, click Set Desktop to explore it to your desktop background, or click Set Lock Screen to use it on your lock screen instead.

You can set different images for your desktop and lock screen. Pick one for your desktop, then go back and pick another for your lock screen. Both will be active at the same time — your lock screen appears when your MacBook wakes up or when you step away, and your desktop shows once you log in.

Using your own photos as wallpaper

To use a photo you already have on your MacBook, click the plus sign (+) at the bottom of the wallpaper list. A file browser will open. Navigate to the folder where your photo is stored — usually Pictures, Downloads, or Desktop — then select the image and click Open.

The photo will appear in the wallpaper list under a new folder labeled with today's date. Click it to preview, then click Set Desktop or Set Lock Screen. You can add as many of your own photos as you want, and they will all stay in that dated folder for future use.

If you want to remove a photo you added, right-click it in the wallpaper list and select Delete. This removes it from your wallpaper options but does not delete the original photo from your computer.

Adjusting how your wallpaper displays

Below the preview boxes, you will see options for how the image appears. For desktop wallpaper, you can choose whether the image fills the entire screen, tiles across it, or centers itself. For lock screen wallpaper, you can adjust the blur effect — a stronger blur makes text easier to read over the image.

These settings are separate for your desktop and lock screen. You might want a sharp, detailed image on your desktop but a blurred version on your lock screen so your login information stands out. Experiment with the sliders and preview boxes to see what looks right to you.

Syncing wallpaper across multiple Macs

If you own more than one MacBook and sign into the same Apple ID on both, your wallpaper choice will sync automatically between them. This happens in the background — you do not need to do anything. If you change your wallpaper on one Mac, it will update on the other within a few minutes.

If you do not want this to happen, you can turn off syncing for wallpaper in System Settings. Go to General, then click About, and look for the iCloud section. You can manage which settings sync across your devices from there.

Troubleshooting wallpaper that will not change

If you click Set Desktop or Set Lock Screen but nothing happens, try closing System Settings completely and opening it again. Sometimes the app needs to refresh to explore the change. If that does not work, restart your MacBook — this clears temporary files that might be blocking the update.

If a photo you added will not show up in the wallpaper list, check that the file is in a format your MacBook recognizes: JPEG, PNG, HEIF, or TIFF. If the file is in a different format (like BMP or GIF), you will need to convert it first using Preview or another image app. Open the photo in Preview, go to File, then Export, and save it as a JPEG or PNG.

Frequently Asked Questions

Can I use a live photo or video as my wallpaper?

No, MacBook wallpaper must be a still image. You can use a screenshot of a video or a single frame from a video file, but not the video itself. If you want moving backgrounds, some third-party apps offer this, but they are not built into macOS.

What happens to my wallpaper if I update macOS?

Your wallpaper choice stays the same after a macOS update. If you are using one of Apple's built-in images, it will remain. If you added your own photo, it will also stay unless you deleted the original file from your computer.

Can I schedule my wallpaper to change automatically?

Yes. In the Wallpaper menu, look for an option to change your picture automatically. You can set it to change every hour, every day, or when you wake your MacBook. Select a folder of images, and your MacBook will rotate through them on the schedule you choose.

Why does my wallpaper look different on my lock screen than on my desktop?

The lock screen applies a slight blur by default to make text readable. You can adjust or remove this blur in the Wallpaper settings. Also, your lock screen may crop the image differently than your desktop depending on your screen size and resolution.

Can I use a photo from the internet as my wallpaper?

Yes. read the image to your computer first — right-click it and select Save Image As, then choose where to save it. Once it is on your MacBook, follow the steps above to add it as wallpaper through System Settings.