![]() ![]() Press Shift-Control-Option on the left side of the built-in keyboard, then press the power button at the same time. Hold these keys and the power button for 10 seconds. If you have a MacBook Pro with Touch ID, the Touch ID button is also the power button.Choose Apple menu > Shut Down and wait for your Mac to shut down.Mac notebooks that have non removable batteries include MacBook Pro (Early 2009 and later), all models of MacBook Air, MacBook (Late 2009), and MacBook (Retina, 12-inch, Early 2015 and later). To reset the SMC on a Mac notebook, first determine whether the battery is removable. Most older Mac notebooks have removable batteries. ![]() Selecting an external (instead of internal) video source for some iMac displays.Status indicator light (SIL) management.Responding to the display lid opening and closing on Mac notebooks.Responding to presses of the power button.The SMC is responsible for these and other low-level functions on Intel-based Mac computers: Reset the System Management Controller (SMC) on your Mac To leave safe mode, restart your Mac without pressing any keys during startup. If your startup disk is encrypted with FileVault, you might be asked to log in twice: once to unlock the startup disk, and again to log in to the Finder. Release the Shift key when you see the login window.If you don’t see the Apple logo, learn what to do. Start or restart your Mac, then immediately press and hold the Shift key.A forced shutdown should only be used if all else fails. The Mac should be safely restarted, that is to say it should be done by selecting the appropriate restart menu, and not by forcing a shutdown by holding the power key. If something had crashed or a particular function was having trouble working, most times a restart will fix it. Restarting your computer boots the operating system again. As cliché as it sounds, it does have its merit. ![]()
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