To install macOS High Sierra 10.13.6 using a DMG file, you typically follow a two-step process: first, extract the installer package from the DMG to your Applications folder, and then run the actual installation app. Apple Support Step 1: Extract the Installer from the DMG Mount the DMG : Double-click your downloaded macOS High Sierra 10.13.6 DMG file to open it. Open the Package : Inside the mounted image, locate the file ending in (often named macOSHighSierra.pkg ) and double-click it. Install to Applications : Follow the on-screen prompts. This will install the OS yet; it simply places the "Install macOS High Sierra" app into your Applications Apple Support Step 2: Run the Installation Launch the App : Go to your Applications folder and double-click the Install macOS High Sierra Follow Setup and agree to the license terms. Select Disk
In this guide, we’ll walk you through the process of obtaining the installer and creating a bootable drive to get your system up and running. Why Choose macOS High Sierra 10.13.6? macos high sierra 10136 dmg install
Would you like the exact Apple support link to the official High Sierra 10.13.6 installer (if still available), or help creating a bootable USB from a valid installer? To install macOS High Sierra 10