While a Mac’s performance is something you’ll have to seldom worry about, there will be times when you’ll see the frustrating spinning rainbow wheel on your Mac. Occasionally, your Mac’s screen may freeze and stop responding, no matter how many keys you press. In these situations, restarting or shutting down your Mac the usual way becomes impossible. After all, how can you click the Apple icon in the menu bar and select Restart or Shut Down if your screen
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