This is that special case when a previously created macOS USB installer can rescue a failing Mac since you won’t even need an internet connection to reinstall its operating system.

To reinstall macOS when there’s no internet connection.

This way, you won’t need to wait for the macOS version to download from the web on each of your computers. If you have more than one Mac and want to install a new macOS on all of them, you can use a bootable USB macOS installer to speed up the process. To install the needed macOS on multiple devices.If you want to update your Mac but are not sure whether a particular app will run on the new macOS, or if you simply want to see how a beta operating system version works before choosing to switch to it completely, it’s possible to keep the previous macOS version and install the other one on a separate APFS volume. If you want to reset your device and make it look as if it’s new, you can create a Mac bootable USB installer, format the internal drive, boot your Mac from that flash drive, and install the new operating system. To wipe your Mac clean and reinstall the operating system.Here’s why you might need a bootable USB macOS installer: You might think that you don’t need it yet, but it is always best to have a flash drive with the needed macOS installation file ready, just in case. There are numerous situations when a bootable USB macOS installer may come in handy. Why Does One Need to Make Bootable USB on a Mac? So, what do you need to make a bootable USB on a Mac, and how to do it? Let’s dive right into this question. But the truth is, the process of creating a bootable installer for macOS is pretty straightforward and takes just a few clicks of the mouse. You might think that creating such a drive is complicated and something that only a tech-savvy might handle.

Whether you want to dual-boot your Mac, have to install the new macOS version on multiple computers (and don’t want to spend hours doing it), or need to reinstall the operating system on your Mac, a bootable USB installer has you covered. Is it possible to make a bootable USB using Disk Utility on Mac?.Can I use Rufus to make a bootable USB for Mac?.Is it possible to create Mac bootable USB from Windows?.Method #2: (Manual) Make a Bootable USB on Mac via Terminal (createinstallmedia commands).Method #1: (Quick & Easy) Create macOS Bootable USB Using Disk Drill.Why Does One Need to Make Bootable USB on a Mac?.

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