Once the Install macOS High Sierra.app is in your Applications folder and the USB is named MyVolume , copy and paste this command into Terminal:
If you cannot use the App Store, these tools fetch the installer directly from Apple's servers to create a DMG or bootable USB: macos high sierra 10136 dmg google drive best
Here’s a short SEO-friendly post for that query: Once the Install macOS High Sierra
If the App Store method fails (often due to certificate errors or "item not available" messages), use these community-trusted alternatives: use these community-trusted alternatives: