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Question: My MacBook will not reboot...

When I restart my MacBook, the grey screen appears, the apple comes up with the scroll bar underneath it, then it scrolls 2/3 of the way and the screens changes color (a muted sepiatone) and the screen goes black and a white spinner comes up about 3-4 times a minute and sometimes you see a white cursor in the upper left hand corner. This can go on all day. I have tried on restart...Command Option PR, N, and Shift Key. I have reinstalled the Sierra software, via one of those restarts and used Utilities to check the Macintosh HD and the system and they are all OK. It does the same thing over and over. HELP!

Chris

MacBook Pro, don't know the OS, but it is Sierra

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Mar 18, 2018 2:14 PM in response to Chris Tanner In response to Chris Tanner

Boot into Recovery (Command R) and from the dropdown menu: Utilities> Disk Utility> run the First Aid on your Macintosh HD


Recovery http://support.apple.com/kb/HT4718


If no errors reported, reinstall the macOS on top of your existing macOS.

Mar 18, 2018 2:14 PM

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Mar 18, 2018 2:20 PM in response to Chris Tanner In response to Chris Tanner

If leroydouglas' suggestion doesn't work then you need to do the following:


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 APFS (SSDs only) or 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.

Mar 18, 2018 2:20 PM

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Question: My MacBook will not reboot...