Allows risk-free testing of the Beta version.It allows the user to test a new version before you decide to upgrade.Allows the user to install a different version of macOS.Here are the top reasons why the user should choose to Boot Mac from USB: It also helps to repair the Mac disk with Disk Utility and other tools. It provides the user access to the contents of the internal drive, assuming the data is safe and not corrupted.
Using an external source like the USB drive helps the user get around the problem. The likeliest of the reason for choosing the boot from the USB method is that your Mac won't start which denies the user access to the computer.
