

What is needed to install High Sierra?īefore you begin, you will need to create a bootable flash drive. Before you install High Sierra, you should back up your Mac. You can get these new featuresand the entire operating systemfor free. After install, the file would usually be deleted anyway, unless you move it to another location.Īpple has released macOS High Sierra, which offers new features such as Apple File System, new features in the Photos app, improved video playback, and more. Nothing at all except you would have to download it again if you ever need it. It is safe to delete, you will just be unable to install macOS Sierra until you re-download the installer from the Mac AppStore. Can I delete the install macOS High Sierra app?Ģ Answers. You can delete it, just keep in mind that if you ever want to install Sierra again, you will need to download it again.


