The safest way to obtain a macOS High Sierra ISO is to download the official installer from Apple (via the App Store or Terminal) and convert it yourself. This ensures the code is unmodified and secure.
: ISO files are the standard format for installing macOS on VMware or VirtualBox on Windows or Linux. macos high sierra 10.13 6 iso download
You can download the macOS High Sierra 10.13.6 update from the Mac App Store. However, if you're looking for an ISO file, you might need to create one from the installer. The safest way to obtain a macOS High