Download Mac Os High Sierra 10.13.6 — Dmg __link__

Type Y to confirm erasing the USB drive.

Before running the installer, disconnect from Wi-Fi (Ethernet too). Open Terminal and set the date back to when High Sierra was signed: Download Mac Os High Sierra 10.13.6 Dmg

Once downloaded, extract the InstallESD.dmg , use the createinstallmedia tool to build a USB drive, and breathe new life into your legacy Mac. High Sierra 10.13.6 represents the perfect balance between modern APFS features and legacy 32-bit application support—a golden release worth preserving. Type Y to confirm erasing the USB drive

Right-click the .app file and select “Show Package Contents.” Navigate to Contents > SharedSupport . Here you will find the InstallESD.dmg – this is the raw disk image you are looking for. Copy it to your desktop. High Sierra 10

sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume Enter your password and press to confirm. How to download and install macOS - Apple Support

If you obtain the installer legitimately, you can verify its integrity: