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. To get the latest features and maintain the security, stability, compatibility, and performance of your Mac, it's important to keep your software up to date. First of all, create a new admin account and login with this account. If your Mac isn't compatible with the latest macOS, you might be able to upgrade to an earlier macOS, such as macOS Big Sur, Catalina, Mojave, or High Sierra. The next section can only be done on a mac that is capable of running Sierra, a mac that came preinstalled with an OS later than Sierra will refuse to do the next bit. This downloads InstallOS.dmg to your Downloads folder. Go to Download macOS and click on macOS Sierra 10.12.
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There is an easy way to backup each user account on your Mac. How to get old versions of macOS Apple Support.
4.4MR4 and 4.5MR1 have also been tested for High Sierra compatibility, but will provide no further guidance to the end user (beyond the single OS prompt) that manual steps are required to provide full An圜onnect capabilities.
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. This is a new requirement in High Sierra. Each user account contains your Desktop files, documents, downloads, videos, music, and pictures. This will back up your user account, along with any other accounts on the Mac, plus any shared data. If it automatically launches after download, quit the installer. (Here’s a link.) Click on the Download button, and your Mac will download the installer to your Applications folder. Doing so will also ensure that you have all of the macOS updates that have been. Launch the App Store app, then look for macOS Sierra in the store. When choosing what to backup manually, most importantly look at the Users folder, located by default at Macintosh HD/Users/. To fix the damaged installer, you should just download the installer again.
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So, If you skip this step, you won’t be able to recover your data if something goes wrong. Downloading and using different Mac OS installers is very common for troubleshooting purposes, for IT staff and admins, and for tinkerers. Part 1: Fix macOS High Sierra 10. 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). If you cannot download or install macOS 10.13 update on your Mac, or macOS 10.13 gets stuck, freezes or fails to install, don’t panic and just simply follow these instructions.