Plug in your USB drive. Note its mount point (e.g., /Volumes/MyUSB ).
: The most secure way to download is through the App Store link for macOS High Sierra . This will download the "Install macOS High Sierra.app" to your Applications folder. Download Mac Os High Sierra 10.13.6 Dmg
If you are on a Windows PC or an unsupported Mac, tools like Plug in your USB drive
To download macOS High Sierra 10.13.6 as a DMG or full installer, it is recommended to use official Apple Support links to ensure security and stability. 1. Official Download Methods Download Mac Os High Sierra 10.13.6 Dmg
If your Apple ID previously “purchased” High Sierra (even when free), it appears in the Purchased section of the Mac App Store on any compatible Mac running OS X 10.7 or later.