Note: This downloads the installer application, not a DMG file directly. Follow the steps below to convert it if necessary.

While third-party sources might offer easy access to download macOS High Sierra 10.13.6 (build 17G10136) DMG files, the risks associated with these downloads make the official route through the Mac App Store the preferred and safest method. Always prioritize security, compatibility, and adherence to software licensing agreements when updating or installing operating systems.

A Complete Guide to Downloading macOS High Sierra 10.13.6 DMG

: Open Terminal and paste the following command (replace MyVolume with the name of your USB drive): sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume