How to find your MacBook's diagnostic menu

Apple Diagnostics is a hidden menu you hopefully won't need to access often.

The short version

• When your Mac gets into hardware trouble, it helps find what's wrong.
• If your MacBook is having major hardware problems, the Apple Diagnostics menu can help make sense of what's wrong.
• A MacBook that keeps shutting down, develops display problems or suddenly stops recognizing its keyboard can leave you guessing whether the problem is hardware or software.

What happened

Apple Diagnostics can narrow that down by testing hardware inside the Mac. Despite the "diagnostic menu" wording you may see online, it isn't something you'll find buried in System Settings.

Why it matters

You access it while your Mac starts up.

Summary by Nerd News Network. Read the full article at Engadget via the links above and below.