Installing macOS without re-downloading it: macOS Monterey is around 12 GB large.
Still, there are some situations when having a bootable flash drive with macOS at hand comes in handy: When a new version of macOS is released, you simply go to System Preferences, click Software Update, and let the installer do its job. Mac users enjoy a hassle-free upgrade process that, for the most part, eliminates the need to fumble with installation media. Why It’s Useful to Know How to Make a Bootable USB on Mac?
How to Start Mac from a USB Drive with Bootable macOS Monterey?.
Method 2: Run “createinstallmedia” in Terminal.
Method 1: Create a Bootable USB Using Disk Drill.
How to Create a Bootable Installer for macOS Monterey?.
Warning: Back Up Your Mac to Avoid Losing Important Data.
How to Download the macOS Monterey Installer?.Why It’s Useful to Know How to Make a Bootable USB on Mac?.