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More importantly, make sure there is nothing important on the drive because the process involves formatting your USB stick, meaning all your data will be wiped. Another thing to keep in mind is that make sure your USB drive now has at least 16GB of storage space. We recommend you acquire a USB drive with a USB-C connector. That’s the reason why we wrote a post on how to burn ISO to USB on Mac if you are searching for an solution to create bootable USB from ISO image.īefore we begin, make sure you now have a USB flash drive. The situation becomes even harder on latest macOS Big Sur as some of the existing apps such as UNetbootin still does add support for Big Sur.
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The fact is that there are dozens of free tools available on Windows, but it is not easy to get one on Mac (mostly are for DVD burning). Bootable or Live USB can be a great help if your computer crashed or need a fresh install of OS.
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