Creating a bootable installer from macOS High Sierra 10.12 DMG is a great way to ensure that you can install macOS High Sierra on multiple machines. Here's how:
no longer receives security updates from Apple. If your hardware supports it, try to move to at least High Sierra (10.13) to take advantage of the more modern file system. Carnegie Mellon University Are you trying to repair an older Mac or just looking to run legacy software Download Macos High Sierra 10.12 Dmg
This article is for informational purposes only. Ensure your Mac hardware is compatible before attempting any operating system installation. Apple no longer actively updates High Sierra, making it vulnerable to modern security threats. Creating a bootable installer from macOS High Sierra 10