How to Update & Install MacOS Catalina

Do you really want to install MacOS Catalina on a Mac? This article will show you how you can install and update MacOS Catalina upgrade on any compatible Mac. It’s a simple forward process. If you follow these steps you should be running the latest and greatest MacOS Catalina 10.15 in short order.

How to Install MacOS Catalina Upgrade on a Mac

There are following steps for installing MacOS Catalina into three distinct sections:

  • making sure the Mac supports the latest MacOS 10.15 release
  • backing up the Mac
  • installing the MacOS Catalina update itself.

Make sure that your Mac is plugged into a power source, and connected to wi-fi or an internet connection before beginning.

Check Mac Compatibility

Not all Macs support MacOS Catalina, but if your Mac was built after 2012 then it probably does. You can also check a list of MacOS Catalina supported Macs. Verify that you have at least 15GB of free storage available as well.

Backup the Entire Mac

It is absolutely difficult to backup your entire Mac before installing any system software update especially major software updates like MacOS Catalina.

Most Mac users back up with Time Machine. But if you use another service that’s fine too, as long as you have a full and complete backup of your Mac and data on the computer.

If you don’t yet have a backup situation, then set up Time Machine backups on Mac with these instructions first. You will need an external hard drive for Time Machine backups.

Installing the MacOS Catalina Upgrade

Here are the few steps for MacOS Catalina installation:

  • Backup the Mac if you haven’t done so already
  • Go to the Apple menu and choose “System Preferences”, then go to “Software Update”
  • When “MacOS Catalina” shows as available, click on “Upgrade Now” (if it doesn’t show as available, go through the App Store first).


  • When the MacOS Catalina installer has downloaded, click on “Next”.


  • Agree to the terms and conditions of using and installing MacOS Catalina.


  • Choose the destination hard drive for MacOS Catalina, for most users it will be “Macintosh HD”, then click “Install”.


  • Let MacOS Catalina install completely, the Mac will reboot automatically during this process, when finished the Mac will boot directly to the MacOS Catalina desktop.


That’s all there is to it, now you’re running MacOS Catalina!

It’ll be a good idea to install any available software updates to MacOS Catalina as they come along. As there are mixed reports of bugs, issues, and problems with MacOS Catalina that some users are experiencing, which can be frustrating to deal with.

If you were previously running a beta version of MacOS Catalina, you might want to opt-out of beta macOS system software updates now that the final version is out, otherwise, you’ll be getting beta updates for point releases.


If you plan on making a bootable MacOS Catalina UBS installer you’ll want to quit out of the installer application to do that before updating to Catalina, otherwise, the installer app is automatically removed after successful installation.

Also Read: iOS 13 is already installed on more than 50% of all iPhones

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