It will install an app named Install OS X El Capitan into your Applications folder. On a Mac that is compatible with El Capitan, open the disk image and run the installer within, named InstallMacOSX.pkg. This will be downloaded as a disk image named InstallMacOSX.dmg. Enterprise administrators, please download from Apple, not a locally hosted software-update server. To get the correct installer, download from a Mac that is using macOS Sierra 10.12.5 or later, or El Capitan 10.11.6. If the installer opens after downloading, quit it without continuing installation. These will be downloaded to your Applications folder as an app named Install macOS.
STEP 2: Create a Bootable USB Drive with UniBeast Take a deep breath and take your time- this is pretty simple, but it’s easy to miss things if you rush. The Application Install macOS High Sierra will appear in /Applications. Other major features upgrades include new photos app with better editing tools, faster and better safari with almost 80% fast javascript rendering than chrome (at the time of its. Like its predecessors, it brings so many new features including a brand new file system.