Macos-sierra-10.12.6-french.iso

Your ISO was derived from an English-only installer. Repeat the ISO creation process while your host Mac's region and language are set to French (France) . Alternatively, download the fr.lproj framework from Apple’s open-source page.

: The installer and system environment are natively set to French ( Français ), including the keyboard layout (AZERTY) and regional formats (dates, currency). macos-sierra-10.12.6-french.iso

He mounted the image. Immediately, the screen was filled with the jagged peaks of the Sierra Nevada, but the interface was a linguistic time capsule. Fichier. Édition. Présentation. Your ISO was derived from an English-only installer

For most users, the best path is to run a newer, supported macOS (or Windows/Linux) inside a VM, but for those preserving classic software or a specific French workflow, Sierra 10.12.6 remains a reliable companion. : The installer and system environment are natively

The "French" in the keyword implies either:

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