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 fairly straight forward process, and by following the steps you should be running the latest and greatest MacOS Catalina 10.15 in short order.
If you want more advice on getting prepared for MacOS Catalina, you can read here.
If you’re up in the air and not sure whether or not you should update to MacOS Catalina, check this article for some thoughts on that matter.
How to Install MacOS Catalina Upgrade on a Mac
We’ll break down the steps for installing MacOS Catalina into three distinct sections; making sure the Mac supports the latest MacOS 10.15 release, backing up the Mac, and finally 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.
1: Check Mac Compatibility
Not all Macs support MacOS Catalina, but if your Mac was built after 2012 then it probably does. You can view a list of MacOS Catalina supported Macs here.
Make sure you have at least 15GB of free storage available as well.
We’ve mentioned this numerous times before but you might also want to make sure you’re not dependent on any 32-bit apps, since those will not work with MacOS Catalina. You can see all 32-bit apps on a Mac using System Information.
2: Backup the Entire Mac
It is absolutely critical to backup your entire Mac before installing any system software update, particularly major software updates like MacOS Catalina.
Most Mac users backup 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, you can buy an external hard drive for affordable prices on Amazon at nearly any electronic retailer.
3: Installing the MacOS Catalina Upgrade
Anyone can download MacOS Catalina for free from the Mac App Store, or from the Software Updates section on their compatible Mac.
- 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!
All future software updates to MacOS Catalina will arrive and be available to download from the Software Update section of System Preferences. You’ll want to periodically check for updates as bug fixes and security updates are released for the new Mac operating system. You can also choose to automatically install MacOS system software updates if that’s easier for you.
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.