After waiting five seconds, power on the computer. Release the power button, replace the battery and reconnect the power adapter, and power on the computer.ĭesktop Macs require you to shut down the computer, unplug the power cord and wait 15 seconds before attaching the power cord again. You’re looking for the disk name, not the. Click on your main hard drive, typically called Macintosh HD, in the sidebar on the left. If you're using a MacBook with a removable battery, disconnect the power adapter, shut down the computer, remove the battery, and press and hold the power button for five seconds. Release the keys and then turn on your Mac. From the Apple menu in the corner of your screen, choose System Settings. Select Disk Utility from the options, and click Continue. The power light on your charger might change colors while you reset the SMC. Click on the iMessage tab and you should see the option to Sign Out next to your. ![]() MacBook models with batteries you shouldn't remove on your own require you to connect the power adapter, shut down the computer and hold the left side "Shift-Control-Option" keys simultaneously. Open the Messages app on your MacBook Air, click Messages from the top menu bar, and choose Preferences. ![]() The SMC controls the power button response, battery management, sleep settings, thermal management, lighting settings and video source selection. ![]() Go to System Preferences > Apple ID, click iCloud in the left panel and then uncheck Find My Mac. Resetting the SMC restores the default settings related to low-level functions that you generally can't modify in System Preferences. Matt Elliott/CNET Next, youll need to turn off Find My Mac and sign out of iCloud. I was trying to factory Reset my mothers Macbook air (I dont know Anything about macbooks) After a bit of struggle i Did the cmd + r Thing and erased all discs.
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