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Richard
Richard, Apple Software Engineer
Category: Mac
Satisfied Customers: 33107
Experience:  IT Engineer for over 15 years
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My mac turns on but the loading bar gets about 1 third of

Customer Question

My mac turns on but the loading bar gets about 1 third of the way then freezes
Submitted: 1 year ago.
Category: Mac
Expert:  Richard replied 1 year ago.

Hi there and welcome

Can you hold the power button down on the Mac until it turns off.

Then hold down SHIFT and with it held down, power on the Mac and keep Shift held down until it loads.

Tell me if it then starts please.

Customer: replied 1 year ago.
Still just freezing
Expert:  Richard replied 1 year ago.

Thanks

  1. Shut down your Mac.
  2. Locate the following keys on the keyboard: Command (⌘), Option, P, and R.
  3. Turn on your Mac.
  4. Press and hold the Command-Option-P-R keys immediately after you hear the startup sound.
  5. Hold these keys until the computer restarts and you hear the startup sound for a second time.
  6. Release the keys.

Tell me if it then starts please.

Customer: replied 1 year ago.
Still nothing happening
Expert:  Richard replied 1 year ago.

ok, can you do the following please

  1. Shut down the computer.
  2. Plug in thepower adapter to a power source and to your computer.
  3. On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
  4. Release all the keys and the power button at the same time.
  5. Press the power button to turn on the computer.

Tell me please if it then starts.

Customer: replied 1 year ago.
Which buttons are shift control on left
Expert:  Richard replied 1 year ago.

Shift is the one you use to type CAPITALS (the up arrow), control is CTRL and Option is the key with either OPT or ALT on it.

But you had to press these (command and Option) in my last instructions. Are you sure you did my last instructions correctly? Just need to confirm.

Customer: replied 1 year ago.
Nothing seems to work
Expert:  Richard replied 1 year ago.

ok, then we attempt this please (we are going through and eliminating all causes for this problem)

Power off the mac

Then start the Mac and hold down the Command and R keys at startup.

Hold these keys until the Apple logo appears. After your computer finishes starting up, you should see a desktop with an OS X menu bar and an OS X Utilities window

choose Disk Utility from the Utilities window, or from the Installer menu if you're started from an installation disc.

Click the First Aid tab.

Click the disclosure triangle to the left of the hard drive icon to display the names of your hard disk volumes and partitions.

Select your Startup Disk (usually named "Macintosh HD").

Click Repair. Disk Utility checks and repairs the disk.

Let this complete and when it has, tell me if you still have the problem please.

Customer: replied 1 year ago.
I did this then restarted the computer but it still freezes
Expert:  Richard replied 1 year ago.

Thanks, ***** ***** the problem and luckily it is not the hard drive but the Ram or motherboard that is at fault, your data is very likley still safe

I am really sorry about this and you are going to have to return the Mac to have a diagnostics run and the faulting component replaced. It will be covered by the warranty if this has not expired, and the replacement will be done at no cost to you.

I am really sorry about this, and if you have problems, or would like any additional information or assistance, please do not hesitate to let me know.

And if you can take a second to rate my service, that would be greatly appreciated.

Thank you