Macos High Sierra 10.13.6.iso [new] May 2026

If you need to perform a clean install, a bootable USB drive (at least 8 GB) is the most reliable method.

High Sierra introduced Apple File System (APFS) for SSDs. However, 10.13.6 still supports for mechanical hard drives and compatibility with older macOS versions (Snow Leopard, Lion). This flexibility is lost in Mojave and later. Macos High Sierra 10.13.6.iso