How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Johnny Mack Your Own Question
Johnny  Mack
Johnny Mack, Mac Support Specialist
Category: Mac
Satisfied Customers: 1353
Experience:  6 years repairing macs and ipods and 3rd level tech support
28647879
Type Your Mac Question Here...
Johnny Mack is online now

My MacBook Pro when switched on switches off as progress bar

Customer Question

My MacBook Pro when switched on switches off as progress bar has completed only 25 to 30%. Any idea what the problem is
Submitted: 2 years ago.
Category: Mac
Expert:  Johnny Mack replied 2 years ago.
Johnny Mack :

Hello there! My name is***** and I will be assisting you today.

Johnny Mack :


Turn off your mac then hold the shift key. Turn on your mac continuing to hold the shift key for no less the 2 minutes.

try to log in.

if you cannot log in then do the following

1. turn off mac
2. Locate CMD and R keys
3. Turn on mac holding the keys from step 2
4. use disk utility to repair hard drive. Then reset.

Related Mac Questions