Download+macos+high+sierra+10136+dmg+mac+install May 2026

Now that you have the file prepared, here is how to install it.

Apple still provides a direct link to the High Sierra installer via its support site: download+macos+high+sierra+10136+dmg+mac+install

Before running any DMG, verify you haven't downloaded a corrupted or malicious file. For macOS High Sierra 10.13.6 (Build 17G66), the correct SHA-1 checksum for the InstallESD.dmg is: Now that you have the file prepared, here

SHA-1: 0x6b4b553e3bd2559b71d1abd8c7d59c4b4822bf0c This downloads the installer to /Applications as Install

On a Mac running Sierra or older, open Terminal and run:

softwareupdate --fetch-full-installer --full-installer-version 10.13.6

This downloads the installer to /Applications as Install macOS High Sierra.app.

macOS High Sierra introduced the APFS (Apple File System). If you are installing this on a Solid State Drive (SSD), the installer will automatically convert your drive to APFS.