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You’re just completing an essay, you’re going to send an email, honestly busy browsing a blog when your Mac surprisingly shuts down. Very rarely is this puzzling enough, however for some Apple users their iMacs or MacBooks randomly turn off every few days.
Regularly the shutdown goes away sooner due to the fans humming loudly and the PC slowing down. MacBooks may randomly turn off despite having more than 20% battery power remaining, but they still won’t turn on again until connected to the mains.
This baffling and erratic problem causes unsaved document deficiency, postponed PC work, and could be damaging hardware or software. An unexpected shutdown may suggest a necessary solution, however similarly it could be the consequence of effortlessly fixed software bugs that we will fix below.
How to prevent your MacBook from restarting?
Force restart your Mac
- When you see a kernel panic screen on Mac, force restart is the only option. Press and hold the power button on your Mac for a few seconds. After the device shuts down, wait a moment before restarting.
- Again, press and hold the power button to restart. If the problem persists, continue to the next troubleshooting step.
Check if your Mac is up to date
- MacOS updates are not just about new features, but also about security and maintenance. Missed updates could be one of the reasons why your Mac keeps restarting. If your Mac is not up to date, click the Apple logo → About This Mac → Software Update.
- Download and install all available updates. The whole process can take a while, especially if you have missed multiple updates.
- Ideally, your Mac should stop restarting unexpectedly once it updates. If your Mac does not support the latest update, you may consider updating the machine for better performance and ease of use.
Troubleshoot hardware problems
- Recently my Mac started displaying the kernel panic screen right after booting up. Sometimes the problem is caused by an accessory that is not working properly. The steps below will help you troubleshoot and check peripheral devices.
- We suggest that you unplug all accessories and peripherals, including mice, external drives, and keyboards. Restart your Mac and be careful if it shuts down unexpectedly. If not, the problem is most likely due to a faulty or unsupported accessory. Unplug and reconnect each accessory until you find the culprit.
- Some Mac models have removable memory. Have you installed a new RAM or hard drive recently? If so, try removing the hardware and testing the problem.
Check for software problems
- Your Mac will most likely restart unexpectedly due to a software problem. It could be a faulty application or an unexpected request. The kernel panic screen acts as a failsafe mechanism that prevents further damage to the system.
- Select the Report option to get more information about the problem. If the operating system believes that a specific application caused the restart, we suggest that you discard it and reinstall a fresh copy. Alternatively, try to determine the cause of the problem with the help of safe mode.
- Also, the problem is sometimes due to a recently changed configuration. Resetting your Mac’s hardware is the best option. The reset will undo any changes made to the system-level settings.
- Resetting NVRAM or PRAM is easy. Just press the Option (alt) + Command + P + R keys simultaneously while your Mac boots up. Make sure to hold down the key for at least 20 seconds.
- In extreme cases, the operating system suffers irreparable damage. The most effective course of action would be to reinstall macOS.
- However, you will lose all your data and we recommend that you back up all your data before attempting any troubleshooting steps. After data backup, restore macOS to factory settings.
- Getting to Apple is the last resort. Suppose all the above troubleshooting steps fail, you need to make an appointment with the Apple Store. Apart from that, you can also get free diagnostics on a Mac at Genius Bar.
- The best part is that Apple offers free diagnostics even if your Mac is out of warranty. If your device is old, the repair estimate should help you decide if it is worth keeping.
- We hope the troubleshooting steps have helped you fix your Mac restarting problem. If you’re still having trouble, maybe it’s time to upgrade to a new machine.
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