Why won’t my Mac turn on? There are a variety of reasons why your Mac may not be turning on, ranging from minor issues to more serious hardware malfunctions.
In this article, we’ll explore some common reasons why your Mac may not be turning on and provide some tips on how to troubleshoot the issue.
One of the most common reasons why your Mac may not be turning on is due to a lack of power.
If your Mac isn’t plugged in or the battery is completely drained, it won’t turn on.
Make sure that your Mac is plugged in and charging, and give it some time to charge up if the battery is completely drained.
If you’re using a MacBook, try resetting the SMC (System Management Controller) by following the instructions provided by Apple. This can sometimes help resolve power-related issues.
Another potential reason why your Mac may not be turning on is due to a software issue.
If your Mac is stuck on the Apple logo or a blank screen, it may be experiencing a software problem.
Try booting your Mac in Safe Mode by holding down the Shift key while it starts up. This will disable any third-party software that may be causing the issue.
If your Mac starts up in Safe Mode, you can try uninstalling any recently installed apps or running a virus scan to identify any malicious software that may be causing the problem.
Why Won’t My Mac Turn On
If your Mac won’t turn on, the issue could be related to the power supply. Here are some potential power issues that could be causing the problem.
Dead Battery
If your Mac is a laptop, the battery could be dead. Your Mac may not turn on if the battery is completely drained.
You can check the battery status by pressing the battery icon in the menu bar. If the battery is low, connect your Mac to a power source and wait for it to charge.

Faulty Power Adapter
If your Mac is not a laptop, the power adapter could be faulty. Check the power adapter to see if the light is on.
If the light is off, the adapter may not be working. Try using a different power outlet or a different power adapter to see if that resolves the issue.
Power Surge
If there was a power surge, it could have damaged the power supply. If you suspect a power surge, unplug your Mac and wait for a few minutes before plugging it back in.
You may also want to try plugging your Mac into a different power outlet.
If none of these solutions work, there may be a more serious issue with your Mac’s power supply.
In this case, you should take your Mac to an authorized repair center or contact Apple Support for assistance.
Hardware Issues
If your Mac won’t turn on, it could be due to hardware issues. Here are some of the most common hardware issues that can cause your Mac to not turn on.
Faulty Hard Drive
If your Mac’s hard drive is faulty, it can prevent the computer from booting up. To check if this is the issue, you can try booting up your Mac in Safe Mode.
If your Mac starts up in Safe Mode, it could indicate that your hard drive is failing. You can also run Disk Utility to check for any errors on your hard drive.
If your hard drive is failing, you will need to replace it. You can take your Mac to an Apple Store or an authorized repair center to have the hard drive replaced.
Damaged RAM
If your Mac’s RAM is damaged, it can prevent the computer from booting up. To check if this is the issue, you can try removing the RAM and reseating it.
If your Mac still won’t turn on, you can try booting up your Mac with only one RAM module installed.
If your Mac starts up with one module but not the other, it could indicate that the other module is faulty.
If your RAM is faulty, you will need to replace it. You can take your Mac to an Apple Store or an authorized repair center to have the RAM replaced.
Failed Logic Board
If your Mac’s logic board has failed, it can prevent the computer from booting up. This is a more serious issue and may require a replacement of the logic board.
You can take your Mac to an Apple Store or an authorized repair center to have the logic board replaced.
In conclusion, hardware issues can be a common cause of a Mac not turning on.
If you suspect a hardware issue, it’s best to take your Mac to an authorized repair center to diagnose and fix the issue.
Software Issues
If your Mac is not turning on, the issue could be related to software. In this section, we will discuss two common software issues that can cause your Mac to not turn on: Operating System Issues and Corrupted Software.
Operating System Issues
If the operating system on your Mac is not functioning properly, it can prevent your Mac from starting up. Some common operating system issues that can cause your Mac to not turn on include:
- Corrupted system files
- Incorrect system settings
- Outdated operating system
- Malware or virus infection
To fix operating system issues, you can try the following:
- Boot your Mac in Safe Mode by holding down the Shift key during startup
- Run Disk Utility to repair disk permissions and fix any disk errors
- Update your operating system to the latest version
- Install and run anti-malware software to remove any viruses or malware
Corrupted Software
If a particular software application on your Mac is corrupted, it can cause your Mac to not turn on. Some signs of corrupted software include:
- The application crashes frequently
- The application freezes or becomes unresponsive
- Error messages appear when you try to open the application
To fix corrupted software issues, you can try the following:
- Uninstall and reinstall the application
- Use a third-party software tool to repair the application
- Restore your Mac to a previous backup where the software was working correctly
In conclusion, if your Mac is not turning on, it could be due to software issues.
Operating system issues and corrupted software are two common software-related problems that can cause your Mac to not start up.
By following the recommended solutions, you can fix these issues and get your Mac up and running again.

User Errors
If your Mac won’t turn on, it could be due to user errors. Here are some common user errors that can cause your Mac to not turn on:
Wrong Startup Disk
If you have multiple startup disks or partitions on your Mac and you accidentally selected the wrong one, your Mac may not turn on. To fix this issue, follow these steps:
- Press and hold the Option key while turning on your Mac.
- Select the correct startup disk from the list of available disks.
- Click the arrow to boot from the selected disk.
Incompatible Peripherals
If you have connected an incompatible peripheral device to your Mac, it may prevent your Mac from turning on.
To fix this issue, disconnect all peripheral devices from your Mac and try turning it on again.
If your Mac turns on, try connecting your peripherals one at a time until you find the one that is causing the issue.
If you have recently installed new hardware, such as RAM or a hard drive, make sure that it is compatible with your Mac. Check the manufacturer’s website for compatibility information.
In summary, user errors can cause your Mac to not turn on. Make sure you select the correct startup disk and disconnect incompatible peripherals to troubleshoot the issue.
Key Points
If you’re experiencing trouble turning on your Mac, there are several possible reasons why. Here are some key points to keep in mind:
- Check your power source. Make sure your Mac is properly plugged in and that the outlet you’re using is working. If you’re using a power strip, try plugging your Mac directly into the wall to see if that helps.
- Try a different charger. If your Mac still won’t turn on, try using a different charger to see if that’s the problem. If you don’t have another charger, you can try borrowing one from a friend or taking your Mac to an Apple Store to test it with one of their chargers.
- Reset your SMC. Sometimes resetting the System Management Controller (SMC) can help fix issues with your Mac’s power. To do this, shut down your Mac, unplug it from the power source, and then hold down the Shift + Control + Option keys along with the power button for 10 seconds. Release all the keys and then plug your Mac back in and turn it on.
- Check your battery. If you have a MacBook, your battery could be the culprit. If your battery is completely drained, your MacBook won’t turn on until it has enough charge. Try leaving your MacBook plugged in for a few hours to see if that helps.
- Contact Apple Support. If none of these tips work, it’s possible that there’s a hardware issue with your Mac. In this case, you should contact Apple Support or take your Mac to an Apple Store for further assistance.
By keeping these key points in mind, you can troubleshoot issues with your Mac not turning on and hopefully get it back up and running again.