How to create a bootable macOS Monterey USB Install drive [Video]

In this hands-on video walkthrough, I’ll show you how to turn an eligible USB drive, one that you may already have laying around the house, into a handy macOS Monterey install disk. This is useful for facilitating upgrades to Monterey across multiple Mac computers. Be sure to subscribe to 9to5Mac on YouTube for more Mac-centric guides, tutorials, and how-tos.

It’s important to note that you don’t need to make a USB Installer to install macOS Monterey. You can use the App Store to download Monterey, or install macOS from Recovery. As noted at the outset, one of the primary benefits of creating a Monterey USB Install drive is to install Monterey on multiple computers.

Selecting a USB drive

Before following this tutorial, you’ll need to make sure you have access to a USB drive that can serve as the installation destination. In general, a USB flash drive will work, as long as it has at least 16GB of storage. In this particular tutorial, I utilize a spare SanDisk Extreme Portable SSD, because it’s all I had available at the moment. Admittedly the SanDisk SSD is overkill given the 1TB storage capacity.

If you’re purchasing a new USB drive to serve as an install drive, I highly recommend the SanDisk Ultra Dual Drive USB Type-C Flash Drive. First and foremost, it’s available with the needed 16GB capacity, but it also has a USB-C connection that plays nice with today’s Mac computers. Finally, I think you’ll find that it’s very price-friendly.

macOS Monterey USB installer video tutorial

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How to create a bootable macOS Monterey USB install drive

Step 1: Launch the Mac App Store, and download macOS Monterey.

Step 2: Once the download of macOS Monterey is finished, the installer will automatically launch. Close the installer via the menu bar or by using ⌘+Q.

Step 3: Connect the USB Drive, open the drive in Finder, and ensure that there’s nothing on it that you need. If there is, it’s important to back up any data on the drive that you need, because following these steps will purge the contents of the drive.

Note: APFS-formatted drives cannot be used with this tutorial. If the drive is formatted as APFS, or you’re not sure, open Disk Utility, select the drive, and click Erase. For format, be sure to choose Mac OS Extended (Journaled) and click Erase.

Step 4: Open Finder → Applications. Right-click on Install macOS Monterey → Show Package Contents.

Step 5: Open Contents → Resources.

Step 6: Open a new Terminal window by navigating to Applications → Utilities → Terminal.

Step 7: Type sudo followed by a space in the Terminal window.

Step 8: Drag createinstallmedia into the Terminal window from the Resources folder opened in Step 5.