Your MacBook Keeps Restarting? Here’s How To Fix It

Having technical issues and troubleshooting them all the time can be exhausting. Yes, it needs to be done, but what if there’s an easier way? If your Apple MacBook keeps restarting, especially on the Startup, you need to take it seriously.

There are a vast amount of reasons why your MacBook could be restarting, but I’ve decided to cover some of the main ones for you. Hopefully, by the end of this short guide, you will be able to troubleshoot the problem yourself and resolve it successfully.

Note: Before starting, if possible, try backing up your device on an external hard drive. Some of the solutions might include resetting your device to factory settings, which means a loss of everything you have installed.

Why MacBook Keeps Restarting?

As mentioned, there could be numerous reasons why your MacBook is restarting on Startup. Whenever you install new software, it can lead to “kernel panic” that leads to unexpected restarts of your device. Yes, I know, it sounds scary, but it’s not that bad. Whenever your OS experiences a fatal internal error or bootup, and it’s not possible to safely recover and continue, you will be informed that your device needs to reboot.

Most common reasons for MacBook restarting:

  1. Conflicting applications
  2. Incompatible hardware or peripheral device
  3. Not enough RAM or HD
  4. Plugins or drivers out of date
  5. macOS flaws

Let’s go through several problems together and see how you can resolve each of them quickly.

Hardware Conflict

If you have recently installed new RAM, a hard drive, printer, or similar peripheral device, it could happen that such device is not compatible with your MacBook, and that’s what’s causing you issues.

To try and solve this problem, you must:

  1. Turn off your MacBook
  2. Disconnect all devices (excluding mouse and keyboard)
  3. Restart your MacBook
  4. Use it for a period of time that would usually result in restarting

There are two possible outcomes. If your device doesn’t restart again, you know that the problem is with one of your external devices. Connect devices one by one back and try to troubleshoot the problem and see which one of them is causing you issues.

If, however, restart occurs again, you will need to check your RAM and hard drive.

Software Conflict

Sometimes, the software that you installed is not compatible with your MacBook causing you issues with restarting. Here is how to solve it.

  1. Check the software you have installed
  2. Discover corrupt one
  3. Fix disk permissions
  4. Launch disk utility
  5. Disable startup items
  6. Reinstall the new OS
  7. Recover loft files

Yes, it looks like a lot of job, but let’s go one by one, and you will understand how easy it is.

Check the software

  • Hold down the shift button until you see Safe Mode
  • Back up everything on an external hard drive
  • Update your software

If the problem is not resolved, you can always try to reinstall your software again.

Discover corrupt software

  • Update corrupt software applications
  • Reboot your computer
  • If you cannot reinstall or update software, uninstall or delete software applications and use app-installer to remove corrupted files altogether

Fix disk permissions

Faulty disk permissions can also cause kernel problems. That’s why you should try and fix them. Here’s how.

For OSX Yosemite and older:

  • Press Command + R to restart your MacBook
  • Open Disk Utility
  • Tap on First Aid > Repair Disk Permissions

For macOS Siera and newer:

  • Open CleanMyMac X
  • Tap on the advanced Maintenance module
  • Choose Repair Disk Permissions

Reinstall the new OS

If none of these solutions worked, you could always reinstall an entirely new operating system on your MacBook.

  • Restart your MacBook
  • Press Command + R
  • Select Reinstall macOS or Reinstall OS X

It will initiate the installation of a clean OS on your MacBook.

Restart Settings On Your MacBook

Sometimes, issues are requiring you to restart all of the settings on your MacBook. Some of the recent changes you’ve made initiated kernel panic, and now it’s time to fix the issue. First, you need to reset your NVRAM or PRAM by pressing Option + Command + P + R simultaneously after your MacBook is back from restarting. Hold all the buttons for about 20 seconds.

Afterwards, you should restart your System Management Controller (SMC).

If the reset resolves your issue, fantastic, you’re good to go!

Update macOS

Sometimes, having an older version of your macOS can cause some issues. Therefore, you need to check if there are updates available and to install the newest. You might see your Mac restarting several times while updating everything, but do not worry. It’s a good sign. It shows that the process is in progress. Once it’s done, your MacBook should be as new.

In some cases, you won’t be able to install the newest updates due to your MacBook’s age. In this case, you should reconsider upgrading your device for better performance and stability.

Contact Apple support

Of course, as a final solution, you can always contact the Apple Support team. For sure, they will find a solution for more complicated issues, or you will find a person who went through the same struggle as you.

Now you have a couple of solutions on what to do if your MacBook keeps restarting. Hopefully, some of them helped you, and the problem is resolved. Please leave a comment below and let me know the issue with your MacBook and how you have fixed it.

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