Are you looking to upgrade, reinstall, or repair macOS High Sierra but struggling with creating a bootable USB? You’re not alone. This task can seem daunting, but with the right guidance, it’s entirely achievable. Whether you’re a seasoned tech professional or a Mac enthusiast, our step-by-step guide is designed to simplify the process for everyone.

In this article, we delve into multiple methods to create a macOS High Sierra bootable USB. We’ll start with the most straightforward approach – using another Mac. This method is ideal if you have access to a second Mac device. We’ll guide you through downloading the High Sierra installer, preparing your USB drive, and using Terminal commands to create your bootable USB.

But what if you don’t have a second Mac at your disposal? Don’t worry; we’ve got you covered. We’ll explore how to use Internet Recovery Mode, a lifesaver for those who only have access to their Mac. This method reinstalls the macOS version that originally came with your Mac, or the closest available version, and from there, you can upgrade to High Sierra.

For the more adventurous users, we also discuss how to create a bootable USB using a Linux environment. This method can be particularly handy if you’re comfortable navigating Linux systems and can provide an alternative route if the traditional methods don’t work for you.

Lastly, if all else fails, we recommend seeking professional assistance. Sometimes, the best course of action is to let the experts handle it, ensuring your Mac is up and running without any hiccups.

Join us as we walk you through each method, providing detailed instructions and tips to ensure a smooth and successful installation of macOS High Sierra. Whether you’re looking to breathe new life into an older Mac or troubleshoot an existing system, our guide is here to help you every step of the way.