If you are on a 2018+ Mac, Apple blocks downloading old operating systems. Use tools like (from GitHub) or MDS (Mac Deploy Stick) to download the genuine 10.13.6 DMG directly from Apple servers. Creating a Bootable USB Installer (10.13.6)
The 10.13.6 update was the final major release for High Sierra, primarily focusing on stability and security. macos high sierra 10.13 6 dmg
Q: What are the system requirements for macOS High Sierra 10.13.6? A: The system requirements for macOS High Sierra 10.13.6 are: If you are on a 2018+ Mac, Apple
