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User profile for user: canjonk
canjonk Author
User level: Level 1
4 points

MacBook crashes during update

My MacBook crashed whilst updating. It was running through and the a circle with a line showed up on the screen. Turned off from power button and restarted. But after I log into computer it goes straight back to updating and then the circle. Any ideas please?

MacBook Pro (13-inch Mid 2012), iOS 11.2.1

Posted on Jan 15, 2018 7:26 PM

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User profile for user: Kappy
Kappy
User level: Level 10
361,849 points

Posted on Jan 15, 2018 7:55 PM

Install El Capitan or Later from Scratch


If possible backup your files.


  1. Restart the computer. Immediately after the chime hold down the CommandandRkeys until the Apple logo appears. When the Utility Menu appears:
  2. Select Disk Utility from the Utility Menu and click on Continue button.
  3. When Disk Utility loads select the volume (indented entry, usually Macintosh HD) from the Device list.
  4. Click on the Erase icon in Disk Utility's main window. A panel will drop down.
  5. Set the Format type to Mac OS Extended (Journaled.)
  6. Click on the Apply button, then wait for the Done button to activate and click on it.
  7. Quit Disk Utility and return to the Utility Menu.
  8. Select Install OS X and click on the Continue button.


This will install the version of OS X you had installed.

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Question marked as Top-ranking reply
User profile for user: Kappy
Kappy
User level: Level 10
361,849 points

Jan 15, 2018 7:55 PM in response to canjonk

Install El Capitan or Later from Scratch


If possible backup your files.


  1. Restart the computer. Immediately after the chime hold down the CommandandRkeys until the Apple logo appears. When the Utility Menu appears:
  2. Select Disk Utility from the Utility Menu and click on Continue button.
  3. When Disk Utility loads select the volume (indented entry, usually Macintosh HD) from the Device list.
  4. Click on the Erase icon in Disk Utility's main window. A panel will drop down.
  5. Set the Format type to Mac OS Extended (Journaled.)
  6. Click on the Apply button, then wait for the Done button to activate and click on it.
  7. Quit Disk Utility and return to the Utility Menu.
  8. Select Install OS X and click on the Continue button.


This will install the version of OS X you had installed.

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MacBook crashes during update

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