This procedure needs to be followed on Macs running the new Mojave upgrade. Changing the Login Screen Background on macOS Mojave Users will now be presented with the new background before they log into their account.

Log off from your machine and you will see the new background image.

Copy and paste your new “ .png” file into the /Library/Caches folder.

You can just overwrite it with your new image if you so choose.

If you want to retain the current background image, rename the current “ .png” file to another name.

Select the image that you want to use as your background and save it to your machine with this east filename - “ .png”.

Use this procedure on Macs running operating systems prior to Mojave. Changing the Login Screen Background Prior to macOS Mojave It’s a small touch that can make your computer usage a bit more pleasant.

Now when you login to your Mac you will have a custom background image. Use the left window panel to navigate to the picture that you would like to use as your background.Since this screen will be viewed more often than the pre-login screen, more users take the time to make this change. One is the default background that appears before you login to your account, and the other is the background image that is displayed while you are logged in.Ĭhanging the image you see when you are logged in is a simple task. There are two background images that you will see when using a computer running macOS. How to Change Your Background Login Screen First, let’s take a look at how you go about changing the background of your login screen on a Mac.

These will be discussed at the end of this article. We disagree with this assessment and believe that there are a number of reasons that it is a good idea to change the background screen. Some people might argue that there is no valid reason to even spend a second of your time in such a worthless modification to your computer. It is a purely cosmetic change that will not affect anything except the visual impact when you login to your Mac. Changing the background of your Mac’s login screen will not do anything to improve the performance of the machine.

How to change mac background to custom