If that fails (Apple occasionally sunsets old links), use the tool—not to patch your Mac, but because the tool downloads a genuine Apple DMG as part of its process.
This article is for educational purposes only. We do not condone or encourage piracy or unauthorized downloads of macOS. Always obtain installation files from trusted sources, such as Apple's official website.
sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install\ macOS\ High\ Sierra.app
Run High Sierra inside virtualization software like VirtualBox, VMware, or Parallels on newer hardware. Technical Specifications and Requirements
A DMG (Disk Image) file is a mountable disk image used by macOS. In the context of operating systems, a is a container file that holds the Install macOS High Sierra.app application. Once mounted, it behaves like a physical installation DVD.
was the final major polish for the High Sierra era. It wasn't about flashy new features; instead, it focused on "under-the-hood" stability and the introduction of foundational technologies like: APFS (Apple File System): A modern, faster file system optimized for SSDs.