How to Change Lock Screen on Mac

Kyle Wood

Mac, Tutorials

Are you tired of looking at the same lock screen on your Mac every day? Well, you’re in luck!

In this tutorial, we’ll guide you through the step-by-step process of changing your lock screen on Mac. Let’s get started!

Step 1: Open System Preferences

To begin with, click on the Apple icon located at the top-left corner of your screen, and then select “System Preferences” from the drop-down menu.

Step 2: Choose Security & Privacy

In the System Preferences window, locate and click on “Security & Privacy”. This will open a new window with various security settings.

Step 3: Unlock the Settings

At this point, you might need to unlock the settings in order to make changes. To do this, click on the padlock icon in the bottom-left corner of the window. You’ll be prompted to enter your administrator password.

Step 4: Select a New Lock Screen Image

Once you’ve unlocked the settings, navigate to the “General” tab if it’s not already selected. Here, you’ll find an option called “Choose a new image”. Click on it to continue.


If you want to use a custom image as your lock screen background, make sure it meets certain requirements. The recommended size is 2880×1800 pixels for Retina displays or 1440×900 pixels for non-Retina displays.

Step 5: Browse and Select an Image

A new Finder window will open from which you can browse and select an image of your choice. Navigate through your folders until you find the desired image and then click “Choose”.

Step 6: Adjust the Image Position

After selecting an image, you’ll have the option to adjust its position. You can choose to fit the image to the screen, fill the screen, or stretch the image. Experiment with these options to find the one that suits your preferences.

Step 7: Lock Your Mac to See the Changes

Now that you’ve selected and positioned your new lock screen image, it’s time to see how it looks. Lock your Mac by clicking on the Apple icon at the top-left corner of your screen and selecting “Lock Screen” from the drop-down menu.


If you have a password set for your user account, you’ll need to enter it to unlock and view your new lock screen.

That’s it! You’ve successfully changed your lock screen on Mac. Enjoy the fresh look every time you lock your device.

Additional Tips:

  • If you ever want to revert back to the default lock screen, simply follow these steps again and select “Use Default” in Step 4.
  • To change your lock screen periodically, repeat Steps 4-6 with different images whenever you want a new look.

We hope this tutorial has been helpful in guiding you through the process of changing your lock screen on Mac. Now go ahead and personalize your device with a lock screen that reflects your style!

Android - iPhone - Mac

 © 2023 UI-Transitions

Privacy Policy