A copious amount of Mac users have reported that they’re facing issues related to their MacBook, it restarts randomly. Especially when you’re doing an important task like creating a document, editing a video, or even playing light games.
In this article, we’ll be discussing how to fix MacBook that restarts randomly. Follow the troubleshooting guide that we’ve managed to provide. Without further ado, let’s crack on.
Also read: My Apple ID is Disabled. What to do?
Why MacBook Stuck in Restart Mode?
Before heading towards our main topic, it is important to know why your machine keeps restarting. If this consequence happens ever again in the future, at least you will have a small idea behind the scenes.
There’s 4 phase that you’re Mac have to pass through system initialization process, and this happens before troubleshooting boot loop issues on the machine. The firmware phases test and initialize whether the Mac hardware locates the system booter. The firmware components read the macOS on your MacBook.
The booter loads macOS Kernal and required components in memory of the machine, here’s where you able to see the Apple logo when MacBook starts.
Once the booting process completes, the kernel loads drivers and the core UNIX operating system, in order to display the progress bar under the Apple logo then you enter it the login screen. That’s all needed to start your Mac.
But if there’s a problem in KEXT, or the booter can’t pass through the kernel loading stage, you’re MacBook goes in restart mode.
Also read: MacBook Stuck on Apple Logo and Won’t Boot Issue? Try these steps.
How to fix MacBook that restarts randomly
To fix MacBook restarting problem, users need to do the following:
Remove MacBook accessories
Sometimes, if accessories are attached to MacBook, the machine restarts randomly. Remove everything except the Power cable. Also, try to remove the secondary display if you use it. Try to remove the Power connecter, leave the system for a couple of minutes and then plug it on.
Start the MacBook in Safe Mode, to do that, press and hold Shift Key while the system starts. The booter will start repairing the system. In case there’re pending repairs the system will restart, then enter again in safe mode by pressing and holding Shift Key.
- If this process fails, then assume that your MacBook not able to load the kernel, in that can do nothing but is to reinstall macOS on your MacBook.
- If the Safe mode continues and repaired the files, then assume that there are third-party drivers that are causing the issue, that can be tracked by verbose mode on the system.
Perform Apple Hardware test
Hardware might cause the problem, press Option +D key when your Macbook starts to open Apple Diagnostic test (Only works on MacBook after July 2011). The process will detect the hardware issues, if there’s any hardware issue detected, then take your MacBook to Apple Store.
Try Single User mode
If your Mac is running High Sierra or above, then restart your MacBook while holding command-S. Now, the command prompt will appear. Execute the command mentioned below to repair the file system:
This will repair your hard disk. Once done, you will get to see “OK”, just reboot the MacBook using the command: reboot
This has worked for many users, so give it a try.
Recovery Mode and Re-Install macOS
Staring the MacBook in recovery mode and re-installing macOS will help to resolve the restart issues. Here’s how to do it:
Step 1: Press Command + Option + R Keys together while your system is starting up, if you’re MacBook goes in safe mode, turn it off.
Step 2: Turn on your MacBook by pressing Power button and then press and hold the Command-R keys until you see the Apple logo on the screen, release the keys as soon as you see the Apple logo on the screen.
Step 3: Now, choose the Disk Utility, and run the Repair utility to repair any issue with your disk. Once you’ve select Disk Utility, select the Startup Volume (Macintosh HD) and choose the First Aid option from the top.
Step 4: Once the repair process is finished, you can safely reinstall macOS on MacBook using recovery mode.
MacBook from 2011 and above, use Command+Option+R key while restarting to start Internet recovery mode in order to r-install macOS from internet.
Reset the PRAM
PRAM stores information such as volume, screen brightness, or startup disk. Resetting the PRAM can resolve your random restart issue on MacBook. Here’s how to do that:
Step 1: Turn off your machine by visiting Apple > Shut Down.
Step 2: On the keybord, locate the following keys:
Command + shift + P+ R.
Step 3: Press power button and hold the keys mentioned above.
Step 4: Release the keys as soon as you hear the second startup sound, you will get to see the startup logo after 20 seconds.
Verbose Mode to quarantine corrupted files
Alternately, you can troubleshoot the issue using the verbose mode, only follow the step if you’re an expert and know about the verbose mode. Launch the MacBook in verbose mode and you will be able to monitor the log. When the startup process stops, just look for the problematic files. Continue the troubleshooting, once you’ve moved the problematic files to a quarantine folder.
It is advised that, perform this step only if you’re still experiencing issue after re-installing macOS.
It might possible that you’re experiencing restart issues, and other problems such as slowdowns, apps crashing and freezing because of the problematic user account. There might be corrupted user account files that are preventing you from getting your machine to start. Create a new user account, to see if this helps, or you can do more research on fixing corrupted user account on MacBook.
What if Nothing Works?
If the solutions mentioned above won’t work out for you, then it might possible that there’s faulty hardware present in your machine. If that’s the case, contact Apple Support, you can also have a conversion with Apple Support directly.
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