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  2. Sep 16, 2024 · Use the bootable installer. Download a full macOS installer from Apple. To get a full macOS installer, download macOS from the App Store or your web browser using the links provided here: How to download and install macOS. Download from a Mac that is compatible with the macOS you're downloading.

  3. Apr 13, 2021 · 1. Download macOS. The first step to install macOS from a USB on a MacBook or Mac desktop computer is to download the version of macOS that suits your needs. The macOS file will download to...

  4. Sep 16, 2024 · Download and install current or previous versions of the Mac operating system on compatible Mac computers. To maintain your computer's security, stability, and compatibility, Apple recommends using the latest macOS that is compatible with your Mac. macOS updates and upgrades also include the latest features and built-in apps such as Safari.

  5. Prepare the external drive for the installation using Disk Utility. Get the macOS install files. We’ll show you how. Install macOS on the external drive. Run macOS on the external drive by...

    • Karen Haslam
  6. Oct 22, 2024 · Step 1: Get macOS installer files. Step 2: Create a bootable installer for macOS. Step 3: Use the USB installer to update your Mac. createinstallmedia commands.

    • Karen Haslam
    • How to install Mac OS X on USB?1
    • How to install Mac OS X on USB?2
    • How to install Mac OS X on USB?3
    • How to install Mac OS X on USB?4
    • How to install Mac OS X on USB?5
  7. Sep 16, 2024 · If you have an external storage device, such as a USB or Thunderbolt drive, you can install macOS on that device, then use it as a Mac startup disk. Connect your storage device to your Mac. Check the format of your storage device. Install macOS on your storage device. Allow booting from external media.

  8. Aug 1, 2024 · Quick Links. Before You Begin. Format Your USB Flash Drive. Download the macOS Installer. Create a Bootable USB Using Terminal. Formatting Your Mac's Drive. Booting Your Mac From a USB Drive. Installing macOS on Your Mac. Key Takeaways. You'll need a removable media device with at least 16GB of storage to create a bootable macOS installer.