For this reason, you need an external HD that is at least the same size as your Mac’s internal memory
Make sure the installer is fully downloaded (about 5 GB) Requirements to create a macOS High Sierra bootable USB driveĬreating a bootable drive with a High Sierra installer is quite simple.
Creating a bootable USB using the Terminal.Requirements to create macOS High Sierra bootable USB drive.It’s not hard at all, and in this article, we will guide you through: It makes sense to create a bootable USB flash drive to install the High Sierra operating system if you want to quickly install it on several Macs without having to download the installer each time. The app will help you delete junk, duplicates, and unnecessary apps in a couple of clicks. MacKeeper allows you to free up necessary gigabytes easily. Please note that before installing any system, you need to ensure there is sufficient space on your Mac.
