Before hunting for the file, ensure your Mac actually supports Sierra. Compatible models include:
Once you've found a reliable source, click on the download link to obtain the macOS Sierra 10.12 DMG file. The file size is approximately 5.2 GB. download macos sierra 1012 dmg file install
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. Before hunting for the file, ensure your Mac
folder before you can install it or create a bootable drive. Open the DMG : Double-click the downloaded InstallOS.dmg Run the PKG : Inside, you will find a file named InstallOS.pkg . Double-click this and follow the prompts. This does install the OS; it installs the "Install macOS Sierra" app /Applications Apple Support Community 3. Installation Methods Direct Installation To install macOS Sierra 10
Step 4 — Install macOS Sierra
Step 2 — Verify the download