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Then choose Disk Utilities and First Aid.

In OS X 10.8 Mountain Lion or advanced versions, pressing and holding the Command and R key together and powering it on again will boot your Mac in Recovery Mode. There may be a hardware issue, so it’s a good idea to boot into Recovery Mode (Command +R) and try repairing your hard drive from there using Disk Utility and First Aid.įor that, you’d need to shut it down first. If it does, any of those peripherals (or a combination) was creating the difficulty. Some of our readers even removed their MacBook’s charger! So if your MacBook has sufficient charge, try removing the charger as wellīooting the system now might result in Mac functioning normally.Disconnect all the peripherals that were connected to it externally except those needed to boot the system.The first and most essential thing you can do is shut your Mac off.Unfortunately, target disk mode only works with Thunderbolt or FireWire and NOT USB, Ethernet, WiFi, or Bluetooth It is a wise practice to backup all your data before you try these steps out. It might be an indication that something is wrong with your system’s hardware. Note: boot failures are serious problems. This article discusses some basic tricks you can execute on your Mac and one of them, most probably, will work out for you. There is a set of things you can try on your Mac to make it function normally again, or at least figure out what went wrong.

Many Mac users find their machines stuck on the Apple logo or commonly known as boot loop and are usually clueless about it. Mac Or MacBook Doesn’t Recognize External Drives, Troubleshooting Tips.Fix a MacBook that keeps powering off or restarting randomly.Use the Start-Up Manager to choose your boot drive.