: Inside the mounted image, double-click the InstallOS.pkg file.
To install macOS Sierra 10.12, you must first download the official disk image (.dmg) file from Apple, extract the installer application, and then run the installation either directly or via a bootable USB drive. download macos sierra 1012 dmg file install
Apple no longer lists Sierra in the "Purchased" tab of the App Store. To find a legitimate DMG or installer package: : Inside the mounted image, double-click the InstallOS
Press , type your admin password, and wait for the process to complete. Installing macOS Sierra from the DMG To find a legitimate DMG or installer package:
install the OS yet; it extracts the "Install macOS Sierra" application into your Applications Apple Support Community 3. Install macOS Sierra Launch the App : Go to your Applications folder and find the app named Install macOS Sierra Follow Prompts
: Open your Applications folder and find the app titled "Install macOS Sierra". Installation Methods