Here is your guide to safely downloading and installing macOS High Sierra 10.13.6. 1. Download the Installer
As of 2026, Apple no longer lists High Sierra in the Mac App Store "Purchased" tab unless previously claimed. However, Apple maintains legacy support URLs: download+macos+high+sierra+10136+dmg+mac+install
Download options (official)
macOS High Sierra is no longer receiving security updates from Apple. This guide is for legacy hardware or specific software compatibility needs. Do not install this on a modern Mac that supports newer OS versions. Here is your guide to safely downloading and
Prerequisites
By following this guide, you can successfully download and install the 10.13.6 version of macOS High Sierra to keep your older Mac running securely. If you want, I can provide: Prerequisites By following this guide, you can successfully
The specific build number (10.13.6) is the final version of High Sierra. Users typically look for this exact DMG for three reasons: