Once you have the installer in your Applications folder, you can turn a USB flash drive into a bootable installer. This is highly useful for clean installations or troubleshooting broken systems. Prerequisites: A USB flash drive with at least of storage.
Open the app (Press Command + Space , type "Terminal", and press Enter). Copy and paste the following command into the window: download macos high sierra 10.13.6 dmg mac
Finally, rename the resulting .cdr file on your Desktop to .dmg . You now have a verified, official High Sierra 10.13.6 DMG. Step 3: Creating a Bootable USB Installer Once you have the installer in your Applications
Open your web browser and navigate to the official Apple Support page for older macOS versions. Open the app (Press Command + Space ,
Download the installer from Apple only . Extract the DMG yourself if needed. Avoid shady “High Sierra 10.13.6.dmg” download sites – they often bundle malware.