Here is a definitive guide on how to install macOS High Sierra on a non-startup drive: 1. Step 1: Download The High Sierra Installer. Choose the volume you wish to install the new macOS on and click Erase. 13) is the fourteenth significant arrival of macOS, Apple Inc’s. 1 dmg for mac free download full version. The Mac OS High Sierra release date was September 25, 2017. Keep visiting themacgo the world of dmgs. With macOS High Sierra, Mac users gain powerful new core storage, video and graphics technologies. The default browser for Apple devices and there are no official versions of Safari for other devices. Question: Q: Download original High Sierra 10. This link is resume able within 24 hours. Enjoy the operating system! (Installs VMWare Workstation 14. A bootable ISO or bootable USB can be made from this installer. High sierra download In the Menu Bar, simply select 'Tools > Download macOS High Sierra.