Macos High Sierra Download _top_ Iso (CONFIRMED ⟶)

14.3 GB available space for upgrade; 20.12 GB for a clean install.

sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/install_build macos high sierra download iso

Once the process finishes, unmount the volume so it can be converted. Note that the volume name will have changed to "Install macOS High Sierra". 14.3 GB available space for upgrade

Now that you have the legitimate installer, we need to create an ISO that is both bootable and compatible with virtual machines. Do simply rename the .app to .iso – that will not work. unmodified HighSierra.iso on your Desktop

You now have a genuine, unmodified HighSierra.iso on your Desktop, created directly from Apple’s signed installer.