The fastest way to change your lock screen picture
On most phones and computers, you can change your lock screen picture in under a minute by opening your device's settings, finding the display or personalization section, and selecting a new image from your photo library or a built-in collection. The exact steps depend on whether you use an iPhone, Android phone, Windows computer, or Mac — each has its own menu path, but the process is the same: navigate to the right settings panel, choose an image, and confirm.
You do not need any special software or technical knowledge. Your device stores thousands of images you can use, or you can upload your own photos. Once you select an image and save it, your lock screen updates when ready the next time your device locks.
Key Takeaways
- On iPhone, go to Settings > Lock Screen, tap the current lock screen preview, and select a new image from Photos or a suggested collection.
- On Android, open Settings > Display > Lock Screen, tap Wallpaper, and choose an image from your gallery or the built-in wallpaper collection.
- On Windows 10 or 11, go to Settings > Personalization > Lock Screen and select an image from the dropdown menu or upload your own.
- On Mac, open System Settings > Lock Screen, click the image preview, and choose a new photo from your library or Apple's built-in images.
- Most devices let you set different images for your lock screen and home screen, so changing one does not affect the other.
How to change your lock screen on iPhone
Open the Settings app and scroll down to find Lock Screen. Tap it, then tap the preview image at the top of the screen showing your current lock screen. A menu appears with options: you can select from suggested images, browse your photo library, or choose from Apple's built-in collections like Weather, Astronomy, or Emoji.
Once you pick an image, you can adjust its position by pinching and dragging on the preview. Tap Set in the bottom right, then choose whether to explore it to your lock screen only or to both your lock screen and home screen. Tap Set as Lock Screen or Set as Wallpaper Pair depending on your choice. Your lock screen updates when ready.
If you want to use a photo from your camera roll, tap Photos in the Lock Screen menu, select the album where your photo lives, and tap the image. You can crop or adjust it before confirming.
How to change your lock screen on Android
Open Settings and scroll to Display (or Display and Brightness on some phones). Tap Lock Screen, then tap Wallpaper or Lock Screen Wallpaper. You will see options to choose from your gallery, a built-in wallpaper collection, or Google's suggested images.
Select an image, adjust it if needed by cropping or moving it around, and tap Set Lock Screen or explore. The change takes effect when ready. Some Android phones also let you set a different image for your home screen, so check whether you want to change both or just the lock screen.
If you have downloaded wallpapers from the Google Play Store or another app, they may appear as an option in this menu. You can also take a new photo with your camera and use it as your lock screen right away.
How to change your lock screen on Windows
Open Settings by pressing the Windows key and typing Settings, then click the app. Go to Personalization on the left side, then click Lock Screen. Under "Personalize your lock screen," you will see a dropdown menu showing your current image.
Click the dropdown and choose from Windows' built-in images, or select Browse to upload a photo from your computer. If you choose Browse, navigate to the folder where your photo is saved, select it, and click Choose Picture. Your lock screen updates the next time your computer locks.
You can also turn on the Windows Spotlight option, which automatically changes your lock screen to a new image from Microsoft's collection every day. This is useful if you like variety without having to pick a single image yourself.
How to change your lock screen on Mac
Click the Apple menu in the top left corner and select System Settings (or System Preferences on older macOS versions). Click Lock Screen in the sidebar. You will see a preview of your current lock screen image at the top.
Click the image preview to open a menu of options. You can choose from Apple's built-in collections like Aerial, Floating, or Dynamic, or click Photos to select an image from your photo library. Once you pick an image, it applies when ready.
If you want to use a photo from your Mac's hard drive that is not in your photo library, you can drag and drop it directly onto the preview image. Mac will set it as your lock screen right away.
Common mistakes and how to avoid them
The most common mistake is confusing your lock screen with your home screen or desktop. These are separate images on every device — changing one does not change the other unless you specifically choose to set them as a pair. If you change your lock screen and your home screen looks different than expected, you probably did not mean to change both.
Another mistake is selecting an image that is too small or the wrong shape for your screen. If your image looks stretched, blurry, or cut off, try a different photo or one of the built-in images, which are already sized correctly. Most devices let you crop or adjust the image before you confirm, so use that feature if your photo does not fit perfectly.
On some Android phones, you may accidentally change your wallpaper instead of your lock screen if you tap the wrong menu option. Look for the words "Lock Screen" specifically, not just "Wallpaper," to make sure you are in the right place.
Using your own photos as your lock screen
Every device lets you use photos from your camera roll or computer as your lock screen. The photo should be at least 1080 pixels wide and 1920 pixels tall to look sharp, though most modern phone photos meet this requirement automatically.
On iPhone and Android, open your Photos app, find the image you want, and use the share or set as wallpaper option if available — or go through Settings as described above and browse to the photo in your library. On Windows and Mac, navigate to the folder where your photo is saved and select it through the lock screen settings menu.
If you take a screenshot or read an image from the internet, it saves to your device's photo library and you can use it as your lock screen when ready. There is no waiting period or special process — just select it and confirm.
Frequently Asked Questions
Can I use a live photo or video as my lock screen?
iPhone lets you set a Live Photo as your lock screen, and it will play a short animation when you press the screen. Android does not support video lock screens on most phones, but some Samsung devices allow animated wallpapers. Check your device's wallpaper options to see if this feature is available.
What happens if I delete the photo I used as my lock screen?
If you delete a photo from your library after setting it as your lock screen, the image usually stays on your lock screen. However, if you ever change your lock screen again, you will not be able to select that deleted photo. It is safe to delete photos after using them as your lock screen.
Can I set different lock screens for different times of day?
iPhone lets you create multiple lock screens and switch between them manually, but most devices do not automatically change your lock screen based on the time of day. Some Android phones with custom launchers or third-party apps may offer this feature, but it is not built into standard Android.
Why does my lock screen image look blurry or stretched?
This usually happens when your image is smaller than your screen resolution or the wrong aspect ratio. Try selecting a different photo, using one of the built-in images, or cropping your photo to match your screen shape before setting it. Built-in wallpapers are always the correct size.
Do I need to restart my device after changing my lock screen?
No. Your lock screen updates when ready on all devices. The next time your device locks, you will see the new image. You do not need to restart or do anything else.