You can change the login screen wallpaper image that appears when you start your Mac to any image you want to use. We previously wrote about how you can change the login screen image in macOS Mojave. It seems that it is a little harder to change this background image for the login screen wallpaper now but it is still possible. You may want to do this so that you do not have to stare at the generic Catalina image every time you type in your password.
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Feb 05, 2020 Mail is likely the default email app on your Mac, but just in case you have others downloaded, you can set the default reader. Here's how: Launch Mail from your dock or the Finder. Click Mail in the menu bar at the top of the screen. Click Preferences. Click the dropdown next to Default Mail Reader. Click the app you'd like to set as the default. MacOS Catalina runs in its own read-only volume, so it’s separate from all other data on your Mac, and nothing can accidentally overwrite your system files. And Gatekeeper ensures that new apps you install have been checked for known security issues before you run them, so you’re always using good software. Oct 08, 2019 Yesterday, Apple released macOS Catalina to everyone and, unlike iOS 13's release, this is one you should upgrade right away.While Catalina isn't a major interface redesign, and much of the new.
macOS Catalina custom login screen
Here is how:
Please follow each step carefully:
1. Find or create the image you want to use. You can find it online. You can create one yourself. You can modify using the Preview app or using any other photo editing apps. This will be your login screen. I created a basic solid black image. See below. Save this image anywhere you want on your computer (e.g, Desktop etc). Just make sure that you can easily find it as we will need this later. There are different types of image formats. Your image can be a JPG or PNG (the most common types).Â
2. Rename this file as Catalina.heic (HEIC files)
You can rename it by selecting it and hitting the ‘return’ key and entering this new name.
3. Now we will disable System Integrity Protection. Do not worry we will re-enable it after we are done. And this can be done via Recovery Mode. Here is how:
- Turn off your computer
- Turn on your Mac and immediately press and enter the Command (⌘)-R keys. Keep these keys when you see a login or the recovery mode screen.
- You will be asked to enter your password
- After starting up from macOS Recovery, click Utilities (from the top menu)
- In terminal enter the following command and press enter (this will turn off System Integrity Protection)
- Restart your Mac by going to the Apple menu and Restart.
4. When your computer restarted, open Terminal (Applications / Utilities or you can use Spotlight) and enter the following command and hit enter:
Make sure that you replace ‘disk1s5’ with the identifier for your system. If asked, enter your passcode. if you do not know this, open Disk Utility (Applications / Utilities or you can use Spotlight) and select your disk (sidebar) and then click the Info icon.
5. Again, in Terminal enter the following command and press enter:
6. Now go to Finder, click Go and then Go to Folder and enter /System/Library and click Go.
7. Click Desktop Pictures folder
8. There you will see a lot of images. Find Catalina.heic and rename this file like Catalina-original.heic, (just in case if you want to change it back).
![Mac Mac](/uploads/1/2/6/5/126592924/753400623.jpg)
9. Now copy and paste the heic image that we created (step # 2) in here (System > Library >Desktop Pictures)
10. Again open the Terminal app and enter the following code and hit enter:
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Wait until the Terminal app completes the process.
11. Restart your Mac, and now you will see that your login wallpaper is changed.
Important: Now, let’s re-enable System Integrity Protection as this will help protect your Mac from malicious software. Here is how:
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![Mac Mac](/uploads/1/2/6/5/126592924/151977446.png)
- Restart your Mac in Recovery Mode (see the step above #3)
- Open the terminal and enter the following command and hit enter:
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Restart your computer. Now System Integration Protection is enabled. You can check this by going to the System Information app (Applications / Utilities). Click Software and check to see if you see this “System Integrity Protection: Enabled”