Press the 'Enter' button on your keyboard. Click 'Terminal' and type 'resetpassword' in the prompt. On the menu bar at the top of the screen, click 'Utilities'. Wait until the Apple logo and the 'Mac OS X Utilities' window appear. In the top toolbar, select 'Go' and then 'Go to Folder. Pop in the Mac OS X installer CD and hold the 'C' button while you restart your Mac. Open the Finder in the dock at the bottom of your screen.Ĥ. Rename the image as 'lockscreen.png' by double clicking the name at the top of the Preview window.ģ. Read our How to recover a forgotten Mac password tutorial for a step-by-step guide to. Open your image of choice using Preview - if that isn't your default viewer, simply right-click the image and select 'Open with' and then 'Preview.'Ģ. Every Mac has a built-in Recovery mode that will let you change the system password if its been forgotten. There's also a more complicated way to change just your lock screen, and keep your desktop the same.ġ. By default, your desktop and lock screen are linked, so changing the desktop will change the lock screen.įor information on how to do this, check out our article, ' How to change your desktop background on a Mac computer to any image, in 4 different ways.' In macOS, all the items responsible for logging you into the system (passwords, startup apps, etc.) are located in the Users & Groups menu: Open System Preferences Users & Groups. The easiest way to change your lock screen is to change your desktop background. png file, and fits the resolution of your computer. Check out the products mentioned in this article: MacBook Pro (From $1,299.99 at Best Buy) How to change the lock screen on your Mac computerįirst of all, find an image that you want to use as your new lock screen.

How to change mac password screen