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Mike, Mac Medic
Category: Mac
Satisfied Customers: 8996
Experience:  Over 20 years IT experience with Apple computers in publishing, marketing and design.
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It is stuck at the loading screen on startup. Yosemite. I

Customer Question

Hello it is stuck at the loading screen on startup
JA: What OS X (Operating System, e.g. Sierra, El Capitan, Yosemite, etc.) or iOS are you runninng?
Customer: yosemite
JA: Have you installed any updates recently?
Customer: yes I usually keep it up to date but I dont recall when was the latest ...
JA: What troubleshooting have you tried?
Customer: pressing shift while restarting
JA: Anything else you want the Mac expert to know before I connect you?
Customer: I also tried to do a PRAM
Submitted: 8 months ago.
Category: Mac
Expert:  Mike replied 8 months ago.

Hi, welcome to! My name is Mike.

I am going over your question and I will be with you shortly.

Expert:  Mike replied 8 months ago.

Is that an iMac or Laptop about what year?

Customer: replied 8 months ago.
Macbook Pro 15 retina late 2013
Expert:  Mike replied 8 months ago.

1. Shut down the computer.

2. Plug in the power adapter to a power source, connecting it to the Mac if its not already connected.

3. On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time, if it starts up you held the power button before the other keys, try again.

4. Release all the keys and the power but

ton at the same time.

5. Press the power button to turn on the computer.

6. Press and hold the Command-Option-P-R keys before the gray screen appears. (You have to do it pretty fast if you miss it just shut down by holding the power button for 10 seconds then start it up and continue with step 6).

7. Hold the keys down until the computer restarts again at least twice.

8. Release the keys and immediately hold down the ‘Command’ + R’ keys on the keyboard during the start up process. When you see the Apple Logo you can let go.

When the machine boots you may have to choose your language then you will see the OS X Utilities screen. Select the Disk Utility and then Continue. Then in Disk Utility select Macintosh HD in the left column (if there are two with that name or it is named something else choose the first indented item) and then on the right select the First Aid tab then select Run. Let me know the results....

Customer: replied 8 months ago.
Hello Mike
Customer: replied 8 months ago.
After step 8 the machine still didn't boot
Customer: replied 8 months ago.
It got stuck while loading at roughly 25%
Customer: replied 8 months ago.
What should I do now?
Expert:  Mike replied 8 months ago.

Hold the power button for 10 seconds then restart and hold Option Command R, this will boot to internet recovery and then follow the previous instructions, let me know

Customer: replied 8 months ago.
Loading bar didn't even begin to load and it's stuck like that
Expert:  Mike replied 8 months ago.

It will take some time it has to boot from Apple's servers so let it go for a while....

Expert:  Mike replied 8 months ago.

At some point you should see a globe if you don't then you may not have hit the keys at the right time, try again.

Expert:  Mike replied 8 months ago.

Any luck?

Expert:  Mike replied 8 months ago.

Do you still need help you never replied back?