Click Login Options at the bottom of the left pane.Click on the lock icon and enter the password of the user account to unlock Users & Groups preferences.You will be asked for the user account password since you are making changes to your system. To enable this feature, click on the Apple menu -> System Preferences from the menu bar and select Users & Groups.If you are annoyed by the password typing every time when your Mac wakes from the sleep or you power it on, here’s what you can do to automatically log into and head directly to the desktop once you start your Mac. Now when you log out or restart your Mac, you will see your custom login screen picture. You will see a file name .png, copy it somewhere to keep a backup and replace the one with the new image. Now, go to Finder and press the keyboard shortcut Command + Shift + G.Note: Make sure your image is in PNG format.

Resize the image to the resolution you see here and rename it to, You can also change the refresh rate of the display, here’s how to view and change the refresh rate of your Mac display. To do that, check your display resolution by going to About This Mac under the Apple menu and click on the Display. Here, you will see the display resolution of your Mac display. To change the login screen background, you will need to resize the image to your display resolution. If you didn’t know, you Mac not only can let you customize the desktop, but it also has a number of tweaks available for the login screen and user accounts. How To Customize Login Screen On Your Mac You’ve customized a few items on your Mac and you might have come across some customizations related to Dock, menubar, and other elements, but have you tried to tweak the login screen? Here are some login screen tricks and hacks that you can apply on your Mac.

Change background mac login screen