How to Download MacOS Installers for New & Old Versions
  • Matthew Daniel
  • March 26, 2023

How to Download MacOS Installers for New & Old Versions

If you’re looking to download MacOS installers for new or old versions of the operating system, it can be a bit confusing to know where to start. In this post, we’ll walk you through the steps you need to take to download the correct installer for your Mac.

Step 1: Check Your Mac’s Compatibility

Before you start downloading any MacOS installer, you need to check whether your Mac is compatible with the version you want to install. Apple provides a list of system requirements for each version of MacOS, so make sure your Mac meets those requirements.

Step 2: Visit Apple’s Support Website

Once you’ve confirmed your Mac’s compatibility, visit Apple’s Support website. Here, you’ll find a list of all the MacOS installers available for download.

Redownload Archived macOS Installers to Address Expired Certificates - TidBITS

Step 3: Search for the Installer You Need

Once you’re on the Support website, use the search bar to search for the installer you need. You can search by version number, such as “MacOS Mojave” or “MacOS Catalina,” or you can search by the release date if you’re looking for an older version.

Step 4: Download the Installer

Once you’ve found the installer you need, click on the Download button. The installer will start downloading automatically. Depending on the speed of your internet connection, this may take a few minutes or longer.

Step 5: Install macOS

After the download is complete, the installer will be saved in your Applications folder. Double-click on the installer to begin the installation process. Follow the prompts to complete the installation of MacOS.

Downloading MacOS Installers via Terminal Made Easy

  1. Open Terminal on your Mac.
  2. Decide which version of the macOS installer you want to download.
  3. Type the appropriate command in Terminal.

softwareupdate --fetch-full-installer

softwareupdate --fetch-full-installer --full-installer-version **.**.*

softwareupdate --fetch-full-installer --full-installer-version 11.3.1

  1. Enter your Mac’s administrator password when prompted.
  2. Wait for the download to complete.
  3. Double-click on the installer in your Applications folder to begin the installation process.

By following these simple steps, you can quickly and easily download the MacOS installer you need via Terminal. Just remember to enter your administrator password when prompted and be patient while the installer downloads.


Downloading MacOS installers for new and old versions is a straightforward process as long as you know what you’re doing. By following the steps outlined in this post, you should be able to download the installer you need and install MacOS without any issues. Remember to always check your Mac’s compatibility with the version you want to install before you start the process.


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