Core Setup

First, update the OS to the latest version:

• Click the  icon then About This Mac.
• Then click the Software Update... button.
• Go ahead to the next section if you see "No Updates Available".
• If not, click the UPDATE ALL button to proceed.
• Your computer may need to restart for some updates.
• For example, macOS Update 10.12.2 - Restart Required
• Make sure there is no more updates available until heading to the next section.