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My OS X® (El Capitan Edition) by John Ray

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15. Troubleshooting Your System

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In this chapter, you learn how to recover and correct common errors that you might encounter when using your system, including:

Force-quitting applications

→ Removing application preferences

→ Booting in Safe Mode

→ Controlling background processes

→ Changing login and startup items

→ Repairing disk errors

→ Generating a system profile for diagnostics

→ Finding your support options

Your Mac is a great piece of hardware combined with a great operating system. Even so, things can still go wrong; applications can crash or “stop working” and strange errors might crop up over time. If you find that your computer isn’t ...

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