Warning icon
MacPaw stands with Ukraine. Here’s how you can help our country win with just several clicks.

How to update your Mac operating system

226.4K views
11 min read

Each year, Apple makes improvements to macOS, the operating system (OS) you use on your Mac. The annual Apple Mac update cycle often brings iterative tweaks, but some years have major changes.

Your macOS operating system – or OS X, for older versions of macOS – can be updated each Fall, so long as Apple is still supporting your device. Here we'll show you how to prepare your Mac for an update, the right way to update macOS to the latest version of OS X or macOS, and some apps that make the process much smoother.

How to update a Mac

You may be wondering "how do I upgrade my Mac operating system?" Once you learn how to backup your Mac and optimize it (you’ll find the instructions below), here's how you update your Mac:

  1. From the menu bar on your Mac, select the Apple icon on the top left and go to "System Preferences"
  2. Select "Software Update"

That's all you need to do! Your Mac will tell you if there's an upgrade available for you. Next time you're thinking "how do I upgrade my operating system on my Mac?" remember this two-step process.

.

How to turn on automatic updates

You can trigger your Mac to update automatically – but first, a word of caution. Many set their Mac to update automatically so they don't ask themselves "how do I update mac os?" every few months. It's typically fine to have your Mac update automatically, but there have been some features that break old apps in newer macOS builds. We would caution you to consider your needs; if you can't risk apps not working or perhaps files being shifted around, we would advise against automatic updates.

automatic updates macos

But for most, it's fine to automatically upgrade your Mac. Here's how:

  1. From the menu bar on your Mac, select the Apple icon on the top left
  2. Open "System Preferences" and select "Software Update"
  3. Select "Advanced"
  4. Make sure all boxes are checked.

Keep in mind you have a bit of control here, too. You can choose to have your Mac check for updates automatically, but not download them. This is a smart choice for those who want a bit more control over when their Mac updates, and we prefer this option as it allows you to create a backup with Get Backup Pro to secure your files before running the update. 

If your Mac runs macOS 13 Ventura, you have the privilege of receiving real-time security updates separately from regular macOS updates. Apple introduced this change to ensure your Mac always complies with the latest security standards and is less vulnerable to security breaches and malware, even if you don’t update your macOS in time. 

Update all your Mac software instantly 

One thing to remember when you update your Mac is that the next step should be updating your apps for them to work properly on a new system. You will find some pending software updates in the App Store (if you install your apps from App Store) but not all. The most effective solution is to bulk update all apps with CleanMyMac X.

CleanMyMac X has a dedicated software Updater feature:

  1. Go to Updater in CleanMyMac X
  2. Click Select All 
  3. Click Update.

Cleanmymac X

How to install macOS 13 Ventura on Mac

The most recent macOS version you might be tempted to try is called Ventura and it debuted at WWDC 2022 in June. The macOS version 13 features improvements such as Undo send and Schedule send in Mail, enhanced image search in Spotlight, Passcodes, brand-new Stage Manager that organizes apps and windows, and more. 

You can download and install macOS 13 developer beta if you’re enrolled in the Apple Developer Program starting June 6, 2022. Public beta is set to arrive later in the summer, and we expect the public release in September or October. 

Here’s the list of Macs macOS Ventura can be installed on: 

  • iMac 2017 and later
  • iMac Pro 2017
  • MacBook 2017 and later
  • MacBook Pro 2017 and later
  • Mac mini 2018 and later 
  • MacBook Air 2018 and later
  • Mac Pro 2019 and later 
  • Mac Studio.

macOS Ventura

How to install macOS updates on an unsupported Mac

Each year, when Apple introduces a new operating system, it usually drops support for at least one old Mac model, meaning the new macOS can’t be installed on that Mac. Unfortunately, replacing a Mac is not equally easy as replacing a macOS, so you might be looking for a workaround to install a macOS update on an unsupported Mac.

There is such a workaround but we have to warn you that we don’t encourage anyone to try it out. Especially if you don’t have solid tech expertise, it’s better to avoid the risk. But if you do want to take this step, you’ll have to install macOS using a third-party patcher. 


disk drill macos

To install macOS Monterey on an unsupported Mac, you should download a patcher from the OpenCore Legacy Patcher here. You’ll find all the instructions on how to install Monterey with this patcher on their website. Just to explain the process shortly, you’ll need to load the Monterey installation files to an external USB, then run the patcher, and install macOS Monterey. Note that this method doesn’t guarantee success, some Mac models won’t be able to install Monterey even with the patcher.

To install macOS Big Sur on an unsupported Mac, you’ll have to go through a similar process, except you need to download a different patcher (the big-sur-micropatcher) from GitHub, and then run it through your Mac’s Terminal.

How to update a Mac running macOS High Sierra or earlier

Unlike recent macOS, High Sierra and earlier versions can’t be installed directly from the Software Update pane in the Mac menu. Here’s how to run updates for old (or shall we say ancient) versions: 

  1. Open the App Store on your Mac
  2. Search for “macOS”
  3. Once you find the right version, click the Get or Download button
  4. Wait for the installer to finish downloading
  5. Once the download is complete, click Continue
  6. Wait for the installation to complete (feel free to continue your work with your update running in the background).

How to run Catalina on an older Mac

To run Catalina on an older Mac, you can use the patcher. Download the Catalina patcher from the website of the developer, DOSDude1. On the website, you’ll find a detailed video tutorial on how to install Catalina using this patcher. Make sure you prepare a flash drive for a bootable installer — this will be necessary to carry out the installation.

How to run Mojave on an older Mac

Similar to Catalina, you can install Mojave on an unsupported Mac with a patcher. Download the Mojave patcher from DOSDude1’s website here. It also contains all the requirements and a step-by-step guide on how to use the patcher. By the way, these websites usually have a Donate link, so feel free to reward the devs for their hard work creating the patchers! 

mojave mac

How to prepare your Mac for an OS update

Knowing how to update the latest Mac system is one thing – preparing your machine is equally important. To prepare your Mac for an upgrade, you'll want to make sure your files are organized properly, all of your system settings are correct, and that your file system is backed up. It's also important to know if your Mac is eligible for an update.

Check the general requirements (and hardware)

To see what specs your Mac has, follow these steps:

  1. From the menu bar on your Mac, select the Apple icon on the top left
  2. Select "About This Mac" from the drop-down menu

This will tell you what year your Mac was made, the version of macOS or OS X you're currently on, the computer's RAM (Memory), processor, and which graphics card your Mac has. These are important to know, as upgrading macOS can require up to 44 GB of storage available on your Mac. 

When you want to upgrade macOS, keep in mind the Mac models this macOS version is compatible with.

Back up your Mac

When it's time to back your Mac up, Apple has an official method dubbed Time Machine. When you use Time Machine, it keeps what's called an "image" of your Mac, which is what a backup really is.

The purpose of creating a backup is most often to have a recent safe point you can reboot from. It's important to run backups as often as possible. The problem is, Time Machine creates too many redundant copies and often backs up the files you don’t want to back up. There's a much better way to back up your Mac: Get Backup Pro.

Get Backup Pro makes the backup process simple, and you remain in total control. One issue many have with Time Machine is it often starts backing up during the day, which consumes resources on your Mac, and things you're working on may not save in your backup. Get Backup Pro lets you back your Mac up to any device you like, and you can set the schedule you want for backing your Mac up. 

You can even choose how many backups you want to keep; Time Machine doesn't allow such customizations. 

getbackup macos

Make sure you have sufficient space for macOS Update

Apple recommends you have a minimum of 26 GB of available storage when upgrading your Mac from macOS Sierra and even more — 44 GB — for older macOS versions. (It's also wise to have a strong internet connection, as the download can take quite a bit of time!)

Here's how to check your system to see if your Mac is eligible for an Apple OS update:

  1. From the menu bar on your Mac, select the Apple icon on the top left
  2. Select "About This Mac" from the drop down menu 
  3. Select the "Storage" tab
  4. Under "Macintosh HD," check if you have enough storage space available

Clean your Mac

When you think "how do I update my Mac operating system?," you should also be thinking about how to prepare your Mac for the update. Remember that if you need to boot your Mac from a backup, it will load exactly what you have on your Mac at the time of the update. Now is a great time to delete apps, re-organize your files, and make sure your settings are optimized.

There's just no better app for this than CleanMyMac X. It leaves your Mac running in peak condition, and like Get Backup Pro, it can be set to alert you on a schedule that it's time to clean up your Mac. All you have to do is open CleanMyMac X on your Mac, select the "Smart Scan" module, and the app scans your system and cleans up unnecessary files, scans for malware, and ensures your settings are set to keep your Mac running as fast as possible by doing things like freeing up RAM and running maintenance scripts.

If you want to really dial your Mac in, CleanMyMac X has a module for uninstalling apps, which also removes their associated files. You can also run the "Maintenance" module to take the Smart Scan feature a step further with a more detailed scrubbing of your Mac.

cmm macos cleaner

Check your internet

While your macOS will remind you to plug in your device if the charge is not high enough for the update process, the quality of your internet connection will remain overlooked as long as it's there.

This means you are better off checking your WiFi with tools like WiFi Explorer and do your best to help everything work nicely for your large update to fully download without a hitch. This WiFi analyzer and monitor can help you check your connection parameters.

check your WiFi

Get a small toolkit to ensure smooth macOS updates

New versions of macOS are exciting for Mac enthusiasts, but don't rush to download them. Always make sure you've cleaned your Mac using CleanMyMac X, and back up your machine with Get Backup Pro. Another great app to download is Disk Drill, which can help you recover files you thought were lost.

All these apps are available for free as part of a seven-day trial of Setapp, a robust suite of productivity apps. Alongside Disk Drill, Get Backup Pro, WiFi Explorer, and CleanMyMac X, you'll get unlimited access to the full Setapp library of more than 230 excellent Mac and iPhone apps.

setapp toolkit macos

FAQ about how to update macOS

How can I update drivers on Apple OS?

Drivers are what allow your Mac to communicate with peripherals like graphics cards, speakers, or printers. You can't directly update drivers on a Mac; your best bet is to update your operating system, which has all the necessary drivers.

If you're using a specific app to communicate with peripherals, like an app for a printer, updating the app itself may install new drivers. 

Mac won’t update?

If your Mac simply won't update, it's likely a hardware issue. As we noted, you'll need quite a bit of storage to update your Mac. If you don't have the space for a new OS, you will be unable to run the latest version of macOS.

Your Mac may also be too old. Though the system requirements help avoid this, Apple only supports older machines for a certain amount of time; this is often because other specs, like graphics cards, are no longer adequate for newer versions of macOS.

It's also possible the update was interrupted; this is why we advise you have a strong internet connection before updating your Mac. These are core issues with a Mac which won't update. If you're experiencing issues, get hold of Apple for support.

Should I update my Mac?

The short answer is yes. Updating macOS is not only a path toward more new features and Mac capabilities, it’s also an important security measure. While Apple updates privacy and security features with each new update, getting those updates is vital.

Get 230+ Mac apps for any job

Sign up to Setapp and try them for free.