What are the initial troubleshooting steps for a Mac with error code 279?

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Grade: Education Subject: Support
What are the initial troubleshooting steps for a Mac with error code 279?
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Start with basic troubleshooting: restart your Mac. If that doesn't work, check your cables and ensure everything is securely connected. Run Disk Utility's First Aid to check for and repair disk errors. Also, check for macOS updates as those can sometimes resolve underlying issues.