6 solutions to Mac stuck on loading bar/screen, Mac progress bar stuck 100%

By Molly | Posted to Mac Data Recovery, updated on Apr.26, 2019 |

Summary: This article will show you 6 useful solutions to fix Mac stuck on loading bar/screen error. Besides, you can also learn how to recover data from unbootable Macs through 2 different methods with iBoysoft Mac Data Recovery.

Table of contents
1. How to recover data from unbootable Mac?
2. 6 solutions to fix Mac stuck on loading bar issue

Many users have encountered such a severe problem: their Macs, such as iMac, MacBook, MacBook Pro/Air, got stuck on loading bar or Mac progress bar stuck at 100% while booting into macOS Mojave/High Sierra. Just some examples:

- My iMac progress bar stuck at 100% after installing macOS High Sierra. How to fix?

- Macbook progress bar gets stuck at 100% when booting (running High Sierra).

- Macbook Pro is stuck at full loading bar; won't open.

- My MacBook Air won't load! It's stuck on loading bar for one hour! Any help is appreciated!

- MacBook stuck on loading screen. Any suggestions?

Generally, a stuck progress bar usually occurs when your Mac fails to reboot from an unforeseen shutdown of Mac operating system, which will prevent you booting up your Mac and accessing data stored on it. In this article, we will show you how to fix Mac stuck on on loading bar issue in detail. Before that, let's see how to recover data when your Mac being stuck on loading bar in Mojave/High Sierra.

How to recover data after Mac being stuck on loading bar in High Sierra?

The fact is, even though Mac stuck on loading/login screen and you were unable to access the data on the unbootable Mac, it doesn't mean the loss of data. However, your any attempts to troubleshoot the stuck Mac may write new data to the computer, which overwrites the original data. To avoid such unnecessary data loss, you'd better recover data from the unbootable Mac at first.

iBoysoft Mac Data Recovery can recover data from corrupted APFS boot drive, recover data from unmountable APFS boot volume, as well as unreadable, inaccessible APFS external hard drives, USB drives, SD cards, Pen drives and much more. It can also recover deleted photos, videos, documents, music and emails after macOS update. It's fully compatible with macOS Mojave/High Sierra/Sierra and OS X 10.11/10.10/10.9/10.8/10.7.

Video Tutorial: How to recover data from Macs that stuck on loading bar?

Solution 1: If you have only one Mac, and it's unbootable

Calm down. You can recover data in Recovery Mode with the help of this Mac data recovery software. Let's get started.

Step 1: Click the Power button to turn on the Mac, and immediately press COMMAND+OPTION+R keys to boot your Mac into Recovery Mode.

Step 2: Open Terminal from the Utilities drop-down menu.

Step 3: Type: curl -o /tmp/boot.sh http://boot.iboysoft.com/boot.sh && chmod 777 /tmp/boot.sh && /tmp/boot.sh and press Enter. This will launch iBoysoft Mac Data Recovery through iBoysoft Server.

Recover Data in Recovery Mode through iBoysoft Server

Step 4: After launching iBoysoft Mac Data Recovery, please select the Mac internal hard drive and click the "Next" button. This program will start scanning for lost files on the drive.

Recover data from unbootable Mac computer

Step 5: Preview the scanning results, and choose the files you want to get back.

Step 6: Click the "Recover" button. You need to specify a different location to store the recovered files.

Recover data from unbootable Mac computer

You can also refer to How to run iBoysoft Mac Data Recovery in Recovery Mode.

Solution 2: If you have two Mac computers

If you fortunately have another healthy Mac computer, or you can borrow one from your friends, you can create a bootable drive and then recover data from it.

Step 1: Create a bootable drive on the healthy Mac computer.

1. Download, install and launch iBoysoft Mac Data Recovery.

2. Click iBoysoft Data Recovery on menu bar and then select "Create Boot Drive".

iBoysoft Data Recovery create bootable drive

3. Insert a USB drive into the healthy Mac, and choose it as the media to create a bootable drive on.

iBoysoft Data Recovery create bootable drive

4. Click "Make bootable" button. The creation process will start immediately. Wait a while.

Note: This process will erase all data on the USB drive. So please be sure to make a backup if there're important files.

5. When the process completed, you'll see a window showing the next steps to recover data. You can take a note, or take a photo with your phone, of the onscreen information. When everything is ready, click the "Close" button.

iBoysoft Data Recovery create bootable drive

Step 2: Recovery data from the unbootable Mac computer.

1. Insert iBoysoft Mac Data Recovery bootable USB drive into the unbootable Mac computer.

2. Reboot your Mac computer and hold down the Option key (‚Ć•) at startup.

3. Select iBoysoft Mac Data Recovery from the boot options. This program will launch when your Mac boots up.

Now you can recover data from the unbootable Mac computer just as above.

How to fix Mac stuck on loading bar on macOS High Sierra issue?

After recovering data from the stuck Mac, you can go ahead to fix the Mac stuck on loading bar, or Mac progress bar stuck at 100% issue without worrying about data loss.

Solution 1: Restart your Mac

Whenever we encounter the boot problem, we can try rebooting the computer. Though not always work, it won't hurt.

Press and hold the Power button till the Mac turns off. Wait a few minutes and turn it on again. What happens?

Solution 2: Boot your Mac in Safe Mode

You can try Safe Mode to help resolve issues that might keep your Mac from completely starting up, including Mac being stuck on loading bar in macOS High Sierra/Mojave.

Press and hold the Shift key while tapping the power button to start your computer. Release the Shift key till you see the Apple logo and loading bar. If your Mac loads successfully in Safe Mode, try restarting without pressing any keys.

Solution 3: Reset NVRAM/PRAM

If the Mac progress bar still stuck at 100% in macOS High Sierra, or Mojave won't boot after macOS update, you can try to reset NVRAM/PRAM. Restart your Mac and simultaneously press Command+Option+P+R keys, and then restart it again.

Solution 4: Use Disk Utility in Recovery Mode

Disk Utility is a built-in tool dealing with disk errors, including the Mac internal hard disk, so you can give it a try to fix the Mac stuck issue.

Step 1: Press and hold the Command and R keys while tapping the power button to start your computer.

Step 2: From the macOS Utilities menu, select Disk Utility.

Step 3: Select the disk or partition that you installed macOS High Sierra on.

Step 4: Click on First Aid on the top

Step 5: When the reparation process finishes, restart your Mac.

Solution 5: Reset the SMC

In some cases, a Mac that stuck on loading bar or wouldn't finish starting up, or started up and then froze after High Sierra update , may just needs its SMC (System Management Controller) reset. To reset SMC, please visit Apple Support (https://support.apple.com/en-us/HT201295).

Solution 6: Reinstall macOS Mojave or High Sierra

If you have tried out all the solutions above but your Mac kept stuck in macOS High Sierra/Mojave loading bar, then I'm afraid you have to reinstall macOS High Sierra, Mojave or any other Apple operating system. This may be the final chance to help your Mac boot past the Apple logo.

Before heading to reformat the disk, please make sure you have a backup copy of data, or have downloaded Mac data recovery software - iBoysoft Mac Data Recovery to recover data from the unbootable Mac. That's because system reinstallation will erase all the files on the Mac internal hard drive.

Then, you can erase the Mac internal hard drive with Disk Utility in Recovery Mode, and reinstall a new operating system. Hopefully, the Mac stuck on loading bar/Mac progress bar stuck at 100% issue can be fixed.


It's terrible if your Mac won't turn on or start up properly, such as being stuck on loading bar or login screen. If unfortunately you encounter such issue, please remember: the top most thing you should do is to recover lost data from the Mac computer, and iBoysoft Mac Data Recovery will be a good helper. Then, you can try out the solutions above one by one till you can boot up your Mac as normal.


Molly is an editor @iBoysoft who frequently shares useful tutorials about data recovery for Windows and Mac.

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