![]() ![]() By booting to the installer, you can perform a full erasure of your normal startup device before installing the new OS. It allows you to perform a clean install of the operating system on your Mac using the existing startup drive. ![]() There are multiple reasons for having a bootable macOS Catalina installer. Why Make a Bootable macOS Catalina Installer? Macs with Thunderbolt 3 can also use a USB flash drive as bootable media (an adapter may be required). All current Macs support booting from a USB port.You can buy a new USB flash drive large enough for this project for less than $10. It’s small and easy to store in a safe place.A bootable flash drive is the preferred method, however here’s why: ![]()
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December 2022
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