Theoretically, an external hard drive such as SSD and HDD can also be used as a bootable macOS installer, but a USB flash drive is always recommended given that it will be quicker compared with a standard hard drive. A clean flash drive with 15GB at least.You need a bootable Mac to create a bootable macOS installer. In addition to using the bootable macOS installer to troubleshoot a malfunctioned Mac, creating a bootable installer for Mac also helps when you need to: When the MacBook Pro won't boot from internal hard drive, you can use a bootable macOS installer to boot Mac from USB to bring the Mac back on track.

Mac beats its competitors for delivering excellent performance and being user-friendly, but inevitably, a machine even your well-equipped Mac could go wrong from time to time such as MacBook won't turn on. When do you need a bootable macOS installer Or, you can use a Rufus for Mac tool to help you create a bootable USB drive for macOS. If so, this post is right for you on how to create a bootable installer for macOS. But sometimes, you may need a bootable installer for Mac.

Usually, Mac users straightforwardly upgrade macOS on their Macs. It is used to install an operating system on your Mac computer. Generally speaking, a bootable installer for macOS is an external storage media with a version of macOS installed. Essential preparations before creating a bootable installer

Software to create bootable usb mac