Macbook Pro Freezes And Shuts Down


Mac or MacBook stuck when shutting down or restarting? How to fix?

My 15' mid-2014 MacBook Pro has been working well since I bought it new 5+ years ago. But in the past couple months, it's now started abruptly freezing, and then shutting down after a few moments, or just shutting down without the freeze. The trigger seems to be some sort of graphically intense process like having a bunch of web pages open and kicking on a video, or video editing. Macbook Pro freezes after sleep. Macbook pro 13' early 2015 freezes and shut down. Hot Network Questions Data format of wannier90hr.dat from wannier90.

The process involves: Hold the power button down (Earlier versions of MacBook Pro) or Hold down the touch ID button. Immediately power it up after a complete shutdown. Hold the power button then, hold down command + option + P + R. See full list on Macbook pro 13' early 2015 freezing after login. Tried solutions Format and Reinstall OS Apple Hardware diagnose SMC and PRAM reset Open in safe mode Stopped using google chrome Disabled Fire.

You might finish work on your Mac, attempt to shut it down, only to find that it is stuck on a desktop picture without any icons. Or perhaps the MacBook freezes on a black screen, but you can still hear sounds from the device (HDD, etc.) Furthermore, you might attempt to unplug the power adapter and remove the battery, but still notice that the computer has not completely shut down. If you encounter these issues when attempting to restart or shut down a Mac computer, this article may be useful.

Unfortunately, many people encounter these problems, which commonly arise following an operating system update. Windows users who have recently switched to a Mac computer will probably not be too surprised, since this is a common issue on Windows platforms. Fortunately, Macs have built-in tools to solve these problems. The first step when troubleshooting these issues is to force the Mac to shut down and reset System Management Controller (SMC) and Non-Volatile Random-Access Memory (NVRAM). Follow this guide to resolve Mac restart and shut down issues.

Table of Contents:

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What is SMC and what is its function?

System Management Controller (SMC) is a low-level Mac hardware component that controls computer power consumption, battery charging and functionality, thermal and fan activity, GPU and video mode functionality/video output, sleep/wake modes and led lightning management, and other hardware functionality. Resetting the SMC might solve issues related to these devices.

Reset SMC of a MacBook Air, MacBook Pro Retina, or MacBook Pro with an integrated battery

  • First, shut down the device and connect the power adapter to the Mac.
  • Hold down the Shift, Control and Option keys while clicking the power button.
  • Finally, release all keys simultaneously - the light on the MagSafe adapter might change color to signify that SMC has been reset.
  • After a successful reset, reboot the computer in the usual way.

To reset SMC on a non-portable device, follow these instructions:

  • Shut down the Mac.
  • Disconnect the power cord.
  • Hold down the Mac power button for five seconds.
  • Release the button, reattach the power cable, and boot the Mac in the usual way.

For more information and detailed instructions read this guide.


Macbook Pro Freezes And Shuts Down

NVRAM (non-volatile random-access memory) is small area of Mac memory that stores certain settings in a location accessible by the macOS. The memory area stores information such as speaker volume, screen resolution, startup disk selection, and any recent kernel panic reports. To reset the NVRAM, shutdown the Mac. Turn it on, and after the loading chime, hold down the Option, Command, P and R buttons together. Keep holding this combination for at least 20 seconds. The display should appear as if the computer is restarting. If you hear the start up chime again, release the buttons.

What is a kernel panic?

Sometimes shutdown problems are caused by recent 'kernel panic' events - resetting the NVRAM should solve these issues. Kernel panics often result in various system crashes involving restarts and shutdowns. A kernel panic is essentially a system error when the Mac operating system is unable to quickly or easily recover. These errors are commonly the result of actions when the Mac attempts to write or access memory incorrectly. They are often caused by corrupted software, software bugs, or malware. Sometimes, they are caused by damaged or incompatible hardware, including faulty external devices connected to the Mac.

Launch Apple Diagnostics or Apple Hardware Test

Apple Diagnostics and Apple Hardware Test are built-in tools that can help to diagnose problems related to the Mac's internal hardware, including parts such as system memory, logic board, and wireless components. Furthermore, these tools are accessible even if the MacBook (or other Apple computer) is unable to boot properly. Follow the steps below to run the diagnostic tool.

Before you start troubleshooting, bear in mind that none of these tools are able to inspect external components, such as external storage or devices, not manufactured by Apple. Also, these particular tools examine hardware only and do not check operating system status.

  • For Macs released after 2013, owners should look for Apple Diagnostics, which is included in their computers.
  • For computers released in 2012 or earlier and running OX X version 10.8.4 or later, use Apple Hardware Test, which is also included with the system.
  • If you have a Mac that was released in 2012 or earlier and running OS X version 10.8.3 or earlier, use the system software disc or USB flash drive that came with the Mac.

How to run Apple Diagnostics


Disconnect all external devices except the keyboard, mouse or trackpad and display. When all unnecessary components are disconnected, restart the Mac, and then press and hold down the D key while the computer restarts. Apple Diagnostics launches automatically - follow the on-screen instructions to proceed and a list with the problem detected will be displayed.

How to run Apple Hardware Test

Unplug all external components except the keyboard, mouse or trackpad and display. When all external devices are disconnected, restart the Mac, press and hold down the D key while the computers restarts. When Apple Hardware Test launches, a window with a list of languages will appear. Choose your preferred language and press Return or click the right arrow. If Apple Hardware Test did not launched, try to run it from the Internet. Reconnect the Apple computer to the network through Wireless or Ethernet and then restart. After the start up chime plays, hold down the Option and D keys. When Apple Hardware Test prompts, select your preferred language and follow the on-screen instructions. If the tool detects problems, they will be displayed on screen. Take a note of these details for contacting Apple Support or a certified service provider.


Try booting in a Safe Mode

A Safe Boot deletes system caches, rebuilds the Mac boot database on the hard drive - this frequently solves various issues. Furthermore, Safe Mode is probably the best way to check if the issue is global or limited to a particular user folder. Shut down and restart issues might be related to third-party software that is loading automatically. Safe Mode checks the system for errors and attempts to solve detected errors.

To enter Safe Mode, first shut down the Mac using whichever method works in your situation. When the computer has completely shut down, wait for approximately 10 seconds and press the power button again. When you hear the start up chime, immediately press and hold the Shift key, and release it when you see the Apple logo and progress indicator.

Bear in mind that safe boot takes much longer than usual, since the computer loads and also performs a system check. If the Mac works correctly, click the Apple logo and select restart.

Use terminal to clear your Mac

Experienced users often use Terminal to solve various issues - in this case, it also contains various options to try. First, open Terminal by using spotlight - hold command and press the spacebar, and type Terminal. Alternatively, go to the utilities folder through finder. Once Terminal has launched, type the following commands one-by-one and press Return after each command.

  • rm -rf ~/Library/Caches/*
  • rm -rf ~/Library/Saved Application State/*
  • sudo rm -rf /Library/Caches/*
  • sudo rm -rf /System/Library/Caches/*
  • atsutil databases -removeUser
  • sudo atsutil databases -remove
  • sudo atsutil server -shutdown
  • sudo atsutil server -ping
  • sudo rm -rf /var/folders/*

When you have tried all commands, restart the Mac.

Alternative methods to solve your shut down and restarting issues:

  • We recommend Combo Cleaner to clean Mac cache files and malware.
  • Remove all printers by going to System Preferences and selecting Printers & Scanners, and then add the required devices again.
  • Before shut down or restart, force quit any running apps by pressing Command, Option and Esc together.
  • Relaunch Finder before shut down from the force quit menu.
  • Ensure, the Trash is empty.
  • Try to shut down the mac via Terminal, type sudo shutdown -r now and press Return.
  • Enter Recovery Mode by holding Command and R while booting, go to disk Utility and run Repair disk, or First Aid to the hard drive.

Video Showing how to solve issue Mac stuck while shutting down or restarting:

Is there anything more frustrating than your MacBook Pro suddenly freezing? It would especially be frustrating if you’re in the middle of an important work and your device suddenly decides to stop working and you lose all the progress. You might feel like it’s taking forever for your task to finish!

If you’re wondering why does my Mac keeping shutting downand what you can do about it, below given are a few simple solutions that you can implement (depending on what’s causing your device to freeze).

  1. Force quit apps that are unresponsive 

If your Mac is not responding, the first thing to check is the open applications. Are all the apps working? Sometimes, an unresponsive app can freeze your Mac.

If the app is unresponsive, simply quitting it is not going to work. You have to force quit the app. You will find a step-by-step guide on how to force quit apps on Mac at Apple Support.

In case your Mac still doesn’t respond after following those steps, you can reboot your device by pressing Ctrl+Opt+Cmd and also the power button at once.

  1. ResettheSMC or system memory controller

The SMC takes care of a lot of things and ensures that your Mac runs smoothly including keyboard backlighting and battery management. If your device is continuously freezing, it might mean that you need to reset the SMC. If you are using a Mac that doesn’t have a T2 security chip, you have to press and hold the Shift+Ctrl+Opt buttons and also the power button for 10 seconds. Then you have to let go of all the buttons and again press the power button to switch on your device.

If you are using a Mac with a T2 chip, you need to switch off your device, unplug the power cable and wait for at least 15 seconds. Then, plug it back in and switch on your Mac.

These methods should help to reset the SMC and your device should start to function properly again.

  1. Reset the NVRAM/PRAM

The NVRAM and PRAM of your Mac are sections of memory that store those settings that need to be accessed quickly by your device. If there is an error with either PRAM or NVRAM, your Mac will freeze. You can try resetting them to solve the problem.

The process for resetting PRAM/NVRAM is –

  • Shutting down your Mac and then immediately restarting it
  • Immediately press Opt+Cmd+P+R and hold them for 20 seconds. Even if your Mac restarts, keep holding these keys for 20 seconds.
  • Release the keys when your device plays the startup sound when it is switched on

You can follow these steps for resetting both NVRAM and PRAM.

  1. Run Apple Diagnostics 

Is the freezing continuing? It might be a hardware issue. In that case, you can run the Apple Diagnostic Test.

For this, you have to first unplug and disconnect all the external peripherals or accessories except the mouse, keyboard, power cord, Ethernet connection, and display. Then, you have to shut down your device.

The next step is to switch on your Mac and immediately press the D key. Keep holding this key until a screen will appear where you have to select your preferred language. Once you’ve chosen your language, you have to wait while the diagnostic test runs. This is only going to take a few minutes.

After the diagnostic test has finished, you will see a list of issues (if any). Along with the issues, you will also find potential fixes. So, you can follow those solutions and see if you can make your Mac work again without any glitches.

If your Mac continues to freeze, you might want to contact Apple and seek professional help.

  1. Boot up your Mac in safe mode 

Loading your device in safe mode might help to fix issues related to freezes or it might help you to discover what’s causing the problem in the first place.

When you boot up your device in safe mode, the integrity of your startup disk will be verified and certain processes and apps will be restricted from running.

To start in safe mode, you can follow these steps –

  • Shut down your device

Macbook Pro Freezes And Shuts Down And Starts

  • Turn your device back on and instantly press the Shift key. When you see the login window, release the Shift key.

Can't Shut Down Macbook Pro

Then, you have to try rebooting your Mac by using the regular startup procedure. If you can use your device without frequent freezes, it means that safe mode might have fixed the problems. However, if the issues persist, you might want to seek the help of an expert.

Macbook Pro Freezes And Shuts Down How To

If you’ve tried all the above-mentioned tricks and still your Mac continues to freeze, take your Mac to the Apple store and get the professionals involved.


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