Mac keeps restarting over and over? Mac keeps restarting on its own? MacBook Pro keeps restarting at boot? No worry. After reading this article, you can not only know why your Mac keeps restarting (Part 1), how to fix the “Mac keeps restarting” issue (Part 2) but also how to avoid spontaneous restarts on your Mac (Part 3). If you have encountered the similar problem on your iPhone X, iPhone 8 or iPhone 8 Plus in iOS 11, go to the article about how to fix iPhone X/8/8 Plus keeps restarting to learn how to solve the problem.
Jun 10, 2020 Why My PC Keeps Installing the Same Update on Windows 10? This mostly happens when your Windows system is not able to install the updates correctly, or the updates are partially installed. In such a case, the OS finds the updates as missing and thus, continues to reinstall them. If you cannot boot to Safe Mode, then try restarting to another OS X installation such as that on an external hard drive or the OS X installation disc (Lion users can boot to the Recovery HD. Jun 19, 2020 Tap General Software Update. If any update is available, then you will be given option to download and install it. But the problem here is that – since your iPhone keep restarting, you might not have enough time to update your iPhone software. So, it’s time to connect your iPhone to computer (PC/Mac) and restore it manually. If the issue is caused by software on your Mac, one of these steps might help: Install all available software updates. If your Mac suspects that a particular app caused the restart, it might ask whether you would like to move the app to the Trash. Click Move to Trash, then contact the software developer to see if a software update is available. Oct 09, 2019 Submitted the crash report to Apple again. Then it happened again. Today, same thing; computer keeps crashing, over and over and over. I've changed nothing in terms of hardware or software between yesterday and today (or since I set up this iMac a few months ago), except for upgrading to Catalina. Under Mojave, there were.
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Part 1: Why Mac keeps restarting
In most of the cases, the main contributor to the 'Mac/MacBook Pro keeps restarting' issue is 'kernel panic'. The 'kernel' refers to the operating system of your Mac. Why does kernel panic lead to abnormal restarts? That's because the operating system has detected an issue on your Mac and the restart must be performed to fix the issue, which is usually caused by the faulty software or a problematic hardware. How to decide whether kernel panic is occurring? Generally, a message will pop up on your Mac screen showing you 'Your Computer restarted because of a problem'. If you are in the very situation, don't hesitate to get possible solutions in Part 2.
Part 2: How to fix Mac/MacBook Pro Keeps Restarting
If your Mac or MacBook Pro keeps restarting over and over, you first need to know where the problem is. Is the software installed on your Mac the cause of the issue or the hardware on your Mac to connected to your Mac the cause of the issue? If the kernel panic is related to hardware, follow the first two tips to learn what to do. While if the problem is related to software installed on your Mac, follow the last two tips instead. (Other solutions to common Mac/iDevice problems are also covered, go to iOS & Mac Topics to find what you need if you want.)
For hardware related kernel panic:
The kernel panic could be caused by a peripheral device or a combination of peripheral devices that has been connected to your Mac or the internal RAM or third-party hardware. Thus hardware troubleshooting is inevitable to solve the 'Mac keeps restarting' issue.
Tip 1: Check the peripheral devices connected to your Mac
Step 1: Shut down your Mac and disconnect all the peripheral devices. (Keep the display, keyboard, and mouse that are from App connected only. )
Step 2: Start your Mac and use it as usual.
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Step 3: Troubleshoot hardware.
If your Mac works properly after you use it for a period of time and no kernel panic occurs, you must know that there is something wrong with the peripheral device that previously connected to your Mac. To check which peripheral device is the 'culprit', connect one peripheral device to your Mac at a time and test. If a single peripheral device doesn't cause the 'Mac keeps restarting' issue, you can try to connect two or more peripheral devices to your Mac and test.
While if a kernel panic occurs later, it must be something wrong with the internal RAM or third-party hardware. If so, follow tip 2 to check the hardware.
Tip 2: Check the internal RAM and third-party hardware on your Mac
Step 1: Shut down your Mac.
Step 2: Remove the third-party RAM and internal hardware from your Mac. Reseat your Apple RAM if you get one. If not, reseat the RAM you have instead.
Step 3: Start your Mac and use it as usual.
Step 4: Do troubleshooting.
If the 'Mac keeps restarting' problem doesn't happen after you use your Mac for a period of time, you know that the third-party RAM or third-party internal hardware should to replaced to avoid the kernel panic.
If your Mac keeps restarting again, you need to go to the Apple Store nearby with your Mac to seek help from Apple.
Hold and press the key combination (Command + R) on your Mac keyboard immediately after you press the power button to turn on your Mac until you see the Apple logo or a spinning globe.
Choose Reinstall macOS in the window and click Continue.
Step 2: If you have reinstalled macOS successfully, go to App Store > Updates to install all the updates on your Mac.
Step 3: Before you reinstall the third-party software, download and install all the third-party software updates.
Step 4: Do troubleshooting.
If the kernel panic doesn't occur, you have solved the issue successfully.
While if your Mac keeps restarting again, follow tip 4 introduced below.
Tip 4: Fix 'Mac keeps restarting' issue related to software
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Step 1: Use macOS Recovery to start your Mac. (Refer to step 1 in Tip 3.)
Step 2: Use Disk Utility to back up your disk image to an external drive with enough free space.
Step 3: Wipe the internal drive via Disk Utility.
Step 4: Install OS X and start your Mac from the internal drive.
Step 5: Go to App Store > Updates to install all updates on your Mac.
Step 6: Reinstall the third-party Apps on your Mac and copy the user data from the backup you have just created.
Part 3: How to prevent Mac from restarting
Unexpected restarts of Mac could be quite annoying, Thus it's necessary to learn how to prevent the problem from happening. The most effective way to avoid kernel panic is to always update your software to the latest version. You just need to go to App Store > Updates to make it. Easy, right? Hope you won't meet the 'Mac keeps restarting' issue again. For other problems like Mac running slow, Mac stuck on the login screen, Mac won't turn on and more, you can also find the fixes in the related article.
Has this happened to you? You’re using your MacBook just like you normally do, but then it suddenly restarts on its own. If it’s only happened once or twice, you probably didn’t mind as long as it functioned as normal after rebooting. But what if it keeps restarting for no apparent reason? If your MacBook constantly keeps restarting on its own, then its function and usability are compromised. Issues like this cannot be ignored; otherwise, you may not be able to fully use it anymore.
So, Why Does My MacBook Keep Restarting?
There are several reasons why this keeps on happening. Here are the most common problems that may cause your MacBook to constantly restart on its own:
Outdated macOS
Keeping your MacBook updated with the latest macOS is important to resolve any issues that it might encounter with the previous system. Missing an update may sometimes cause issues with the settings and update process of your MacBook. This leads to your MacBook getting confused and restarting on its own repeatedly.
The fastest way to resolve this issue is to install the latest updates on your MacBook. Several rebooting may be needed depending on how behind your MacBook is on updates. However, if your MacBook can no longer be updated due to old age, you might have to consider getting a new Macbook altogether.
App Issues
Some apps may also cause your MacBook to keep restarting. macOS and its underlying hardware may get an unexpected request from the code of the app. This leads to macOS being forced to restart and solve the problem. This phenomenon is called “kernel panic.”
To resolve this, there’s usually a popup message that indicates the specific software or app causing the problem. Update the said software and that should fix the problem. If it doesn’t, uninstall the app and restart your Mac. Should this work, refrain from installing the said app until it’s updated.
Malfunctioning Peripheral Devices
Accessories to Mac may also cause kernel panic. This usually occurs immediately on start-up. It may also happen within minutes following your Mac’s booting. Simply detach all the peripheral devices connected to your Mac to diagnose if they’re the problem. This includes your mouse, drives, and keyboard.
After removal, try restarting your Mac. If it’s a success, then you know that the problem lies with one of your accessories. One by one, reconnect each accessory to figure out which among them lies the problem.
Settings Reset
There may be times when your Mac randomly restarts after a recent change. This doesn’t mean that there’s something wrong with your Mac. It’s just that the change you made may have caused an issue on startup. This leads to your Mac rebooting. When this happens, there’s a chance that your Mac won’t even get you past the login screen.
One way to solve this problem is by resetting your hardware settings. This means that all changes you’ve made will be reverted. However, this reset may also fix the issue you’re currently facing with your Mac. The first step is to reset your NVRAM or PRAM. After this, reset your System Management Controller (SMC). Doing these resets should help fix the issue at hand.
macOS Issue
Minor resets don’t always fix the problem. Sometimes, the issue lies deep within a native operating system. It is also possible that the problem may be connected to faulty hardware. One way to resolve this is by reinstalling macOS. Doing this results in a good outcome and a bad outcome.
The good outcome is that it should resolve any native MacOS issue. However, reinstalling macOS also means that your data will be erased. In addition, what if the problem lies with faulty hardware all along? Doing this won’t help any hardware problems either. An example would be a failing fan, which may cause your computer to overheat and reboot.
To initiate, begin with the restoration of MacOS without fully erasing the disk. If the issue persists, continue to completely erase the disk. This should fix the problem. If you have essential data on your disk, make sure to back them all up prior to the restoration of MacOS.
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What If Your MacBook Still Keeps Restarting?
If all the methods mentioned above still do not work to keep your MacBook from restarting repeatedly, the next best thing to do is to contact Apple Support. Make sure that you have a backup of your data before you send your MacBook in for inspection. Otherwise, raise this issue with Apple so you can save and protect your valuable data. Restart issues may sometimes be due to a more complex underlying problem and Apple would be your best bet to save your MacBook.
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Got other troubleshooting issues? Check out our guides.