If you're looking to install or run macOS from an ISO file, such as a French version (indicated by "french" in your string), here are the general steps. Note that directly installing from an ISO might not be the standard method for macOS, as Apple typically provides a direct download through the App Store or a bootable installer creation tool. However, for educational purposes or specific needs:
Burning the installer to a DVD or creating a specific type of bootable USB. macossierra10126frenchiso
: Note that many modern browsers (like Chrome) and apps no longer support Sierra. Consider using Legacy Patcher if you are trying to run newer software on this older OS. If you're looking to install or run macOS