Legal and Safety Considerations

If you named your USB drive something other than MyVolume , replace MyVolume in the command with the exact name you chose.

Unlike macOS Catalina (10.15) and newer, High Sierra still fully supports 32-bit applications. Many legacy business tools, classic games, and audio production plugins require this compatibility.

softwareupdate --fetch-full-installer --full-installer-version 10.13.6 Use code with caution. Press . Terminal will display the download progress.

In terms of system requirements, you will need at least and 14.3 GB of available storage to perform the upgrade.

Risks of Third-Party DMG Downloads