Mac Keeps Restarting? Here's How to Fix It in 9 Ways

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Sarahi Johns
Last updated: May 8, 2023

Summary: Looking for a way to stop Mac from keeping restarting? In this post, we will walk you through the possible reasons and fixes. Read on to learn more.

Mac keeps restarting is really annoying. Especially while you are working on your Mac.

Wondering why does your Mac keep restarting and looking for effective solutions?

Here we will take you to figure out the Mac keeps restarting reasons first, and then we provide you with practical ways to solve the problem based on the basic reasons one by one. Just keep reading!

Mac Keeps Restarting: 11 Possible Reasons and 9 Fixes

Why Does My Mac Keep Restarting?

The initial thing you need to do is to figure out the reasons why your Mac keeps restarting. This lays a solid foundation for learning the fixes and preventive measures in the next steps.

Here we listed the 11 main reasons:

  • Outdated Mac System
  • A Flaw in macOS
  • Outdated Apps
  • Peripheral Devices
  • Hardware Error
  • Software Error
  • Worn-out Battery
  • Insufficient Storage Space
  • Incompatible Memory or a Hard Disk
  • Your Setting Needs to Be Reset
  • Viruses

How to Get Your Mac Out of Restarting

Now that you know the main reasons behind the constant restarting Mac, let’s learn some practical methods to get your Mac out of restarting. You can force restart Mac first, if this does not work, try other methods.

We divide Mac keeps restarting problems into two parts: kernel panic problems related to software and hardware-related problem. Try one method or practice them all! Learn and practice more to avoid your Mac keeps restarting again.

1. Update Your Mac

An outdated Mac and Mac updates error may be the top reason why your Mac keeps restarting over and over.

So the first action you should take is to check if your Mac has an available update. If yes, follow the steps below to have an update:

  1. Click the Apple menu and select System Settings.
  2. Click General > Software Update to check if there is an update available.
Check Softtware Update on Mac
Tip
In case of data loss, you’d better back up your Mac before you update it.

2. Update Apps

Outdated Apps may also lead to your Mac keeps restarting. Keeping your apps updated regularly. And if you are not, try to update your installed apps now!

And here is how:

  1. Open App Store and click Update.
  2. Update all apps in the update list.

In addition to the above methods, you can also check if there is an update by clicking the App Menu on the Apple menu when running the app.

In some cases, there may be a popup alert appearing: Your Computer was restarted because of a problem. If you are in this situation, just click Report to check more detailed information.

Restart Problem Alert
note
For the latest macOS, the built-in software on your Mac will be updated along with the system update, so you just need to update the non-system software in the Apple Store.

3. Force Quit All Open Apps

Too many apps running at the same time is also the key to your Mac constantly restarting. Force-quitting all applications may allow you to restart your Mac successfully. Methods as below:

  1. Click the Apple logo in the upper left corner of the screen.
  2. Select Force Quit.
  3. Click one app you want to quit > press and hold command and click all apps you want to force quit at the same time (don’t release).
  4. Click Force Quit.
Force Quit All Open Apps

4. Uninstall Problematic Software

Typically, if your Mac suspects that an app is causing a restart, you may be asked if you want to move the app to the trash. For this case, just click Move to Trash.

However, this may not uninstall the problematic software completely. So if you want to uninstall the problematic app completely, we highly recommend BuhoCleaner to you. It is a powerful and professional app uninstaller. It makes removing problematic apps and related files completely achievable.

Want to have a try and explore more? Follow the steps below:

Uninstall Unwanted Apps Using BuhoCleaner
  1. Free download, install, and launch BuhoCleaner.
  2. Click App Uninstall and check the problematic app.
  3. Click Remove and wait for the removal process to be completed, and then click Done.

5. Disconnect Peripheral Devices

If there are problems with the peripherals, it can also cause problems with your Mac. So to troubleshoot whether the constant restarting of your Mac is due to the peripherals, you can check it by following these steps:

  1. Turn off your Mac.
  2. Disconnect all peripheral devices. (e.g. printer, hard drive.)
  3. Turn on your Mac and check if there is still an unexpected restart occurring.
  4. If an unexpected restart occurs, then skip to other causes.
  5. If not, connect peripherals one by one until the Mac starts restarting again. (If you want to dig out which peripheral device is the restarting cause.)

6. Disable Startup Items

Too many startup items may slow down your computer. And this can also cause your Mac to have problems with constant reboots. To disable the unimportant startup items and to get out of the restarting screen, you can try the following two ways.

Disable via System Settings:

  1. Click the Apple icon and then select System Settings.
  2. Click General > Login Items.
  3. Select the unwanted login items, then click the - button.
Disable Login Items on macOS Ventura

Disable via BuhoCleaner:

  1. Free download, install, and launch BuhoCleaner.
  2. Click Startup Items on the left menu.
  3. Click Scan and then disable unwanted startup items.

7. Using Safe Mode

Using Safe Mode can help you determine if constant Mac restarting is caused by software loaded on Mac startup. Safe Mode prevents your Mac from loading certain software at startup, including login items, system extensions that are not needed by macOS, and fonts that are not installed by macOS.

And here's how to enter Safe Mode:

First, make sure you are using a Mac with an Apple silicon. If so:

  1. Shut down your Mac.
  2. Turn on your Mac and continue to press and hold the Power button until you see the startup options window.
  3. Select your startup disk, then press and hold the Shift key and click Continue in Safe Mode.
  4. The system may ask you to log in again.

If you have an Intel processor:

  1. Turn on or restart your Mac, then press and hold the Shift key as soon as your Mac starts up.
  2. When you see the login window, release the key and then log in to your Mac.
  3. You may be asked to log in again. In the first or second login window, you should see Safe Boot in the upper-right corner of the window.

8. Check the Internal RAM and Third-party Hardware

A third-party RAM and hardware are more likely to lead to your Mac keeps restarting than Apple RAM. And that’s because they may be incompatible.

Follow the steps below to get rid of this problem:

  1. Remove any third-party RAM.
  2. Seat your Apple RAM in the system and restart it.
  3. If this did work, it presents the RAM is your Mac keeps restarting reason.
  4. Replace the third-party RAM with Apple RAM permanently.

9. Check and Clear Virus

Virus is also a repeat offender that causes problems with Mac. Use a virus scanner to check your Mac for malware. If there is any, you need to uninstall it promptly.

Final Words

In this post, we introduce possible reasons why your Mac/MacBook keeps restarting and fixes for restarting over and over. After finishing reading, just do it! Hope these methods help you out of the restarting screen successfully!