×
: If you receive an error that the installer is damaged, it is often due to an expired security certificate. Redownloading the latest version from Apple usually resolves this.
: Includes stability improvements specifically for the Terminal application.
If you need to reinstall an older Mac or downgrade your operating system, here is the correct way to get a working copy of macOS Sierra.
: If you receive an error that the installer is damaged, it is often due to an expired security certificate. Redownloading the latest version from Apple usually resolves this.
: Includes stability improvements specifically for the Terminal application.
If you need to reinstall an older Mac or downgrade your operating system, here is the correct way to get a working copy of macOS Sierra.