How to Change Your Lock Screen Photo on Any Device

Your lock screen is the first thing you see every time you pick up your phone or wake your computer — so it makes sense to personalize it. Whether you're updating a tired wallpaper or setting a photo that actually means something to you, changing your lock screen image is one of the most straightforward customizations available on modern devices. That said, the exact steps vary more than most people expect.

What the Lock Screen Actually Is

The lock screen is the interface layer displayed before you authenticate — before Face ID scans your face, before you enter a PIN, before Windows Hello logs you in. It sits independently from your home screen or desktop wallpaper, which means changing one doesn't automatically change the other.

On some platforms, like older versions of iOS, the lock screen and home screen wallpapers were always set together or separately through the same menu. On newer versions of iOS (16 and later), Apple rebuilt the lock screen into a fully customizable layer with its own widget system and per-wallpaper settings. On Android and Windows, the lock screen has historically been a distinct setting from the desktop background — though manufacturers like Samsung, Google, and OnePlus each add their own layers on top of Android's base behavior.

Understanding this distinction matters because it determines how many steps are actually involved.

How to Change the Lock Screen Photo by Platform

📱 iPhone (iOS)

On iOS 16 and later, the process is:

1. Wake the screen and long-press on the lock screen itself
2. Tap the "+" button to add a new wallpaper or tap "Customize" to edit the current one
3. Select "Photos" and choose your image
4. Adjust the position and depth effect
5. Tap "Add" and then choose whether to use it for the lock screen only, or both lock screen and home screen

On iOS 15 and earlier: Go to Settings → Wallpaper → Choose a New Wallpaper, select your photo, and set it for the lock screen, home screen, or both.

🤖 Android

Because Android is fragmented across manufacturers, there's no universal path — but the most common routes are:

• Stock Android / Pixel: Settings → Wallpaper & Style → Change Wallpaper → select your photo → set for Lock Screen
• Samsung One UI: Settings → Wallpaper and Style → select image → choose Lock Screen
• Long-press on home screen: Many Android skins allow you to long-press the home screen, tap "Wallpaper," and choose a lock screen option from there

Some Android manufacturers also allow lock screen photos to be changed directly from the lock screen itself by long-pressing, similar to the iOS 16 approach.

💻 Windows

On Windows 10 and 11:

1. Open Settings → Personalization → Lock Screen
2. Under "Personalize your lock screen," choose Picture from the dropdown
3. Click Browse Photos and select your image

Windows also offers a Slideshow option if you want to rotate through a folder of images automatically, and the Windows Spotlight option pulls curated images from Microsoft's servers — which overrides any photo you manually set.

macOS

The macOS lock screen uses the same image as your desktop wallpaper:

1. Go to System Settings → Wallpaper (macOS Ventura and later) or System Preferences → Desktop & Screen Saver (earlier versions)
2. Select an image or drag a photo from Finder
3. That image will appear on both the desktop and the lock screen

Variables That Affect the Process

Changing your lock screen photo sounds simple, but several factors shift what you can actually do:

A photo that looks sharp on an older 1080p display may look fine, but the same image on a modern OLED panel with a higher pixel density might reveal compression or low resolution you didn't notice before. Most platforms will accept standard JPEG and PNG formats; HEIC images from iPhones are generally handled natively on Apple devices but may require conversion elsewhere.

When the Lock Screen Doesn't Change — Common Reasons

If your photo isn't sticking, a few things are usually responsible:

• Windows Spotlight is still enabled — it overrides your custom image until you switch the setting to "Picture" or "Slideshow"
• MDM policy is active — corporate device management can enforce wallpapers at the system level, and users cannot override them without admin access
• Insufficient storage or permissions — some devices require the image to be stored locally rather than accessed from cloud storage
• iOS Focus Modes — on newer iPhones, different Focus Modes can be linked to different lock screen wallpapers, so your image might appear when one Focus is active and disappear when another takes over

The Spectrum of Customization

Basic lock screen photo changes are available to essentially all users on unmanaged personal devices — it takes under a minute. But the depth of customization varies significantly:

• A casual user on a personal iPhone or Android phone has full control and can change their image in seconds
• A power user on iOS 16+ can pair different lock screen wallpapers with different Focus Modes, creating context-aware lock screens for work, sleep, and personal time
• A corporate employee on a work-issued device may find the wallpaper settings greyed out entirely
• A Windows user who prefers rotating imagery has the slideshow option; one who wants consistent branding or a favorite photo uses the static picture option

The right approach also depends on factors like how frequently you want to refresh the image, whether you want different lock screens for different contexts, and whether you're working on a personal or managed device.

What makes sense for your setup depends entirely on which platform you're on, what version of the OS you're running, and whether anyone else — an employer, a parental control profile, or a device policy — has a say in how your lock screen looks.