and be sure the complete installer is located in the /Applications/ directory. Download macOS High Sierra installer application from the App Store. Connect the USB flash drive to the Mac, if you need to format it go ahead and do so. When it is done, backup the disk image to your online/local backup. How to Make a Bootable USB Installer for macOS High Sierra. Select Save the home folder in a disk image and Click Delete User. Access System Preferences→Users & Groups, and Clock minus button on the bottom in the left panel. First of all, create a new admin account and login with this account. There is an easy way to backup each user account on your Mac. Learning how to create a bootable macOS installation disk can be helpful in a variety of situations. If you have more than one user on your Mac, and you’re only interested in backing up your own data, just go one level deeper and select your user account from within the Users folder. How to Create a Bootable Mac USB Installer (Based on Mojave and High Serria) Posted by Candie Kates on 16:47:20. Each user account contains your Desktop files, documents, downloads, videos, music, and pictures. Navigate to the macOS High Sierra application page and click the Get button.
This will back up your user account, along with any other accounts on the Mac, plus any shared data. Connect a 8GB or larger USB key to your computer then launch the Mac App Store from your dock.
When choosing what to backup manually, most importantly look at the Users folder, located by default at Macintosh HD/Users/. So, If you skip this step, you won’t be able to recover your data if something goes wrong. If you want to go back to your previous macOS, heres how to downgrade macOS. Note: A clean install of macOS Sierra on the startup drive completely erases all data on that drive including all your files (documents, music, movies, pictures, and even apps). Currently, you can only create a bootable installer for macOS Big Sur, Catalina, Mojave, High Sierra, or El Capitan.
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