Mac os hard restart

Restart your Mac in macOS or Windows

After installing Microsoft Windows on your Mac, you can choose whether your Mac starts up in macOS or Windows.

How to start up in macOS from Windows

1. From the notification area on the right side of the Windows taskbar, click to show hidden icons.
2. Click the Boot Camp icon .
3. From the menu shown, choose Restart in macOS.
   If you haven’t installed the latest Boot Camp updates, you might get the message ”Could not locate the OS X boot volume.»
   

Or use Startup Manager as your Mac starts up:

1. Restart your Mac from the Start menu in Windows.
2. Press and hold the Option (or Alt) ⌥ key as your Mac begins to restart.
3. Select your Mac startup volume (Macintosh HD) in the Startup Manager window, then press Return or click the up arrow:
   

How to start up in Windows from macOS

• Use Startup Manager to choose your Windows (Boot Camp) volume during startup.
• Or select your Boot Camp volume in Startup Disk preferences, then restart.

Learn more

• If you’re having difficulty using VoiceOver or another screen reader to complete these steps, please contact Apple Support.
• Learn how to install Windows 10 on your Mac.

Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement. Apple assumes no responsibility with regard to the selection, performance, or use of third-party websites or products. Apple makes no representations regarding third-party website accuracy or reliability. Contact the vendor for additional information.

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Mac startup key combinations

Learn about the Mac features and tools that you can access by holding down one or more keys during startup.

On a Mac with Apple silicon

Turn on your Mac with Apple silicon and continue to press and hold the power button until you see the startup options window. From there you can start up from a different disk, start up in safe mode, use macOS Recovery, and more. Learn more about these options, including macOS Recovery.

On an Intel-based Mac

To use any of these key combinations, press and hold the keys immediately after pressing the power button to turn on your Mac, or after your Mac begins to restart. Keep holding until the described behavior occurs.

• Command (⌘)-R: Start up from the built-in macOS Recovery system. Or use Option-Command-R or Shift-Option-Command-R to start up from macOS Recovery over the internet. macOS Recovery installs different versions of macOS, depending on the key combination you use. If your Mac is using a firmware password, you’re prompted to enter the password.
• Option (⌥) or Alt: Start up to Startup Manager, which allows you to choose other available startup disks or volumes. If your Mac is using a firmware password, you’re prompted to enter the password.
• Option-Command-P-R:Reset NVRAM or PRAM. If your Mac is using a firmware password, it ignores this key combination or starts up from macOS Recovery.
• Shift (⇧): Start up in safe mode. Disabled when using a firmware password.
• D: Start up to the Apple Diagnostics utility. Or use Option-D to start up to this utility over the internet. Disabled when using a firmware password.
• N: Start up from a NetBoot server, if your Mac supports network startup volumes. To use the default boot image on the server, press and hold Option-N instead. Disabled when using a firmware password.
• Command-S: Start up in single-user mode. Disabled in macOS Mojave or later, or when using a firmware password.
• T: Start up in target disk mode. Disabled when using a firmware password.
• Command-V: Start up in verbose mode. Disabled when using a firmware password.
• Eject (⏏) or F12 or mouse button or trackpad button: Eject removable media, such as an optical disc. Disabled when using a firmware password.

If a key combination doesn’t work at startup, one of these solutions might help:

• Press and hold all keys in the combination together, not one at a time.
• Shut down your Mac. Then press the power button to turn on your Mac. Then press and hold the keys as your Mac starts up. You might need to wait a few seconds before pressing the keys, to give your Mac more time to recognize the keyboard as it starts up. Some keyboards have a light that flashes briefly at startup, indicating that the keyboard is recognized and ready for use.
• If you’re using a wireless keyboard, plug it into your Mac, if possible. Or use your built-in keyboard or a wired keyboard. If you’re using a keyboard made for a PC, such as a keyboard with a Windows logo, try a keyboard made for Mac.
• If you’re using Boot Camp to start up from Microsoft Windows, set Startup Disk preferences to start up from macOS instead. Then shut down or restart and try again.

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Log out, sleep, wake, restart or shut down your Mac

At any time, you can log out of, sleep, wake, restart or shut down your Mac.

Log out

On your Mac, choose Apple menu

If you don’t want app windows that are open to reopen when you log back in, deselect “Reopen windows when logging back in”.

If your Mac is set up for multiple users, other users can log in after you log out.

Sleep

On your Mac, choose Apple menu

> Sleep. If you’re using a Mac notebook computer, just close the display.

On your Mac, press the Space bar or click the mouse or trackpad. If you’re using a Mac notebook computer and the display is closed, just open it.

For security, you can set an option to require a password after waking your Mac. You may be able to unlock your Mac with your Apple Watch or use Touch ID instead of entering your password.

Restart

On your Mac, choose Apple menu

If you don’t want app windows that are open to reopen when your Mac restarts, deselect “Reopen windows when logging back in”.

Shut down

On your Mac, choose Apple menu

If you don’t want app windows that are open to reopen when your Mac restarts, deselect “Reopen windows when logging back in”.

A Mac is completely shut down when the screen is black. Some computers also don’t show an active power light or have any fan or drive noise.

Important: If you’re using a Mac notebook computer, wait for it to shut down completely before closing the display. If you close the display while the Mac is shutting down, it may not shut down properly and may start up more slowly the next time you turn it on.

Always shut down your Mac before opening the case to install additional memory or other devices inside the computer. You may also need to shut down before connecting or unplugging certain peripheral devices. If you are unsure, refer to the documentation that came with the device.

You don’t need to shut down your Mac when connecting or disconnecting cables, such as USB-C, Thunderbolt or Ethernet.

Important: You can force a shutdown if necessary — for example, if your Mac becomes unresponsive — by pressing and holding the power button until your Mac shuts down. You may lose unsaved changes in open documents.

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How to force reboot a frozen Mac

Before we start

Having spent some years coding applications for macOS we’ve created a tool that everybody can use. The all-round problem fixer for Mac.

So here’s a tip for you: Download CleanMyMac to quickly solve some of the issues mentioned in this article. But to help you do it all by yourself, we’ve gathered our best ideas and solutions below.

Features described in this article refer to the MacPaw site version of CleanMyMac X.

Before we get our hands dirty, here’s a word of warning. If you’re wondering how to reboot a MacBook Pro, bear in mind it’s the last resort when all other methods to unfreeze your Mac had failed. Don’t try it too often, as it may harm your system. No question, your Mac can handle rapid power losses, and your hardware most likely won’t be hurt. What’s at risk, though, is your data because each time you force reboot a Mac, it affects the consistency of the file system. Now that you’ve been warned let’s go.

Symptoms your frozen Mac needs a force restart

• Applications are not responding
• The pointer is not responsive
• Loud fan noise
• The screen goes black
• Mac unable to restart

Can you move the cursor? If yes, try this

Before you force restart a Mac, it’s always recommended to first try a software solution.

• Go to the Apple menu
• Choose Restart
• Click Restart in the menu that appears

Two ways to force restart a Mac

The simplest method: hold down the Power button till your Mac shuts down. Press the button again to restart it.

If your Mac hangs for good and the pointer is inactive:

• Hold down Control-Command while pressing the Power button.

This is an alternative key combination to force restart a Mac. By the way, if you are on an iMac, the Power button is found on the back of your Mac. Voila!

Is Shut Down any different from Restart?

The difference between Shut Down and Restart is quite self-explanatory. When you perform a restart, your Mac will turn on again, loading its previously active apps. As for shut down, your Mac won’t start until you press the Power button again. Interestingly, all new Macs have an automatic reboot feature built-in. So even if you sit and do nothing, your frozen Mac would eventually reboot by itself, though it takes a bit of patience.

How to force shut down a frozen Mac

If you need to force shut down a MacBook Pro or MacBook Air, all you need is again to press a Power button on your Mac’s keyboard.

1. Press and hold the Power button for 2 seconds.
2. Choose Restart, Sleep, or Shut Down in the menu that appears.

If you don’t want to reload the baggage of your previously opened apps, tick off “Reopen windows when logging back in.” We recommend you deselect this option when your Mac is slow to lighten the weight on your RAM.

If your Mac won’t shut down:

1. Press and hold the Power button.
2. Hold the button until the Mac shuts down.

Needless to say that when you force restart a Mac, all your unsaved projects may be lost. It’s unfair, we know.

Why does my Mac keep freezing?

The obvious explanation is your Mac lacks memory. Or, to put it another way, there are too many active processes running on your Mac. First off, go to Activity Monitor to check your memory usage.

1. Go to Applications > Utilities > Activity Monitor
2. Click the Memory tab.

Now, look into how heavily your Memory is loaded. Quit apps that eat up too much memory for no reason. While this may work as a temporary solution, it doesn’t stop your Mac from freezing up again. You can either force reboot your Mac each time or opt for a radical solution. Below are a few more ideas you can try.

More ways to fix a frozen Mac

Restart your Mac in the Diagnostics mode

Shut down your Mac and reboot while pressing the D key. Within the menu that appears, launch the Apple Diagnostics tool. This will check your Mac’s drive for errors. From then, follow the prompts to finish the diagnostics.

Clean up your Mac

Remove old unused apps, system junk, and pervasive browser extensions. For this purpose, try running the CleanMyMac X application on your Mac.

It’s quite effective in removing all junk from your Mac and has several helpful utilities, like RAM free up or app uninstaller. Download it for free here.

Reinstall your macOS

This is the most radical of all methods; that’s why it’s so effective.

Hope this guide has helped you. Before you force shut down this article, feel free to share it using the social buttons below. Cheers!

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How to Force Reboot a Frozen Mac

Though Macs are known for being stable and experiencing considerably fewer crashes and system freezes than some of the competition, the reality is that sometimes stuff still happens. Typically it’s just an app that crashes or freezes up, remedied with a force quit and relaunch, but on rare occasions the Mac will freeze entirely, with Mac OS X becoming completely unresponsive to anything, from keyboard input to even the inability to move a cursor. This is often accompanied by fans blazing quite loudly, demonstrating a truly frozen Mac, and when this happens the computer is basically stuck in that state until you intervene.

Intervening is best done by forcibly restarting the frozen Mac, and that’s exactly what we’re going to cover here. With a truly frozen computer, you’ll actually be forcing it to shut down and then booting it again, as the traditional power shortcuts don’t work and aren’t registered.

How to Force Restart Any Frozen Mac with the Power Button

This works nearly the same on any modern Mac, with the difference being whether the Mac has a physical power button on the back of the machine or if it’s like the MacBook line, where the power button is on the keyboard. In both instances, a force reboot is basically forcing the Mac to shut down, then starting as usual. Again, this is only needed in extreme situations where a Mac is completely frozen with all possible interaction and input devices frozen and unresponsive.

Forcibly Rebooting a MacBook Air & Retina MacBook Pro

If the Mac has a power button on the keyboard, like all modern MacBook laptops do, this is how you forcibly reboot it:

• Hold down the Power button on the keyboard until the MacBook shuts down completely, this may take 5 seconds or so
• Wait a few seconds then hit the Power button again to boot the Mac

Force Restarting MacBooks with SuperDrives & Physical Power Buttons

For the older MacBook and MacBook Pro models which carry an eject key and a SuperDrive, the Power button is located on the upper right corner of the open Mac. The procedure is otherwise the same as above.

Forcibly Rebooting an iMac or Mac Mini

Unlike laptops, desktop Macs don’t have a power button on the keyboard, instead the power button is a physical button located on the back of the Mac.

• Press and hold the button on the back of the computer until the Mac turns off, wait a few seconds, and then press the button again to initiate system start

The iMac power button is located on the lower corner at the back of the computer, it shows the familiar power logo, but you can usually find it just by feeling around too.

Regardless of which Mac you have, the Mac should now boot as usual.

Macs can freeze for a variety of reasons, but if you recently installed new RAM on the computer, you may want to run a memory test to verify that it’s not bad RAM. If that checks out and the freezes are quite rare, it’s probably not something to worry about, but if the computer is constantly freezing up, you’ll likely want to back it up and get it looked at by Apple Support or a technician to be sure that there aren’t other hardware failures.

Note: some Macs and versions of Mac OS X have an ‘automatically restart if Mac freezes’ option, though it has disappeared in recent versions of Mac OS X. If you do have that option and use it, you’ll likely never encounter a true freeze, the Mac will suddenly reboot, seemingly at random instead.

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59 Comments

So my MacBook is stuck with a black screen and an active cursor. It won’t turn off. I’ve tried the very brilliant idea of holding down the power button which I do thank you for suggesting as if I never considered that. Kind of like telling me to have hot tea if I have a cold. No, really? And holding down the shift/control option power buttons and releasing them simultaneously doesntnworkd either. Any other suggestions?

I turned off my mac in the am. Came home and turned it back on. It moves to a blue screen but won’t boot. Have tried several of the suggestions above to force a reboot. Nothing seems to work.

OMG thank you so much. 😀

What would you suggest as the easiest way to see immediately if a forced reboot lost you any files? Some app that compared your system before and after? I’ve tried googling around this topic but only come across articles explaining how to try to restore unsaved files.

Sadly none of this stuff works if the power button is unresponsive as well. There is life in my MacBook because the white ‘sleep’ light is on, although not going bright and dim as when sleep mode is on. No keyboard buttons seem to have any effect, not even the power button. I have a wireless keyboard, but this refuses to connect to the laptop any more. In short I reckon I am f*****d.

This “rare” thing happens at least once every other week (specially when I’m trying new steam games, or when they released new update) some weeks it can happen up to 20 times in a week.

(I got early 2011 macbook pro)

Have you made sure to leave at least 10% of your hard drive free? When I’m running out of disk space I start to get crashes…

I have inherited an old 2009 Macbook Pro from my wife and wanted to re-initialise it and install an SSD to give it a lease of live.

I Initised the SSD using disk utility using a SATA lead, then booted to recovery and tried to install OSX. Because my apple account was not associated with the OS/Machine I could not install the OS to the SSD. Reading the internet it told me when in recovery go to internet help and select icloud, enter your details there and then it should work.

So I do just that, but get some wierd refreshing behaviour on the icloud screen which was refreshing itself so frequently I could not login, so I clicked on the apple bookmark and it hang, got the spinning wheel. The only thing I could do on this screen was change the wifi, nothing else was available to me.

I tried clicking on the close cross, nothing Option Q to quit nothing. Power/Eject button nothing. Hold down Power/Eject Button nothing. Tried a few other combinations I found on the internet nothing.

I have currently unplugged it and am waiting for it to run out of juice. I may just unscrew the back and unplug the battery as I will need to do that anyway to install the SSD.

But anyway what I am saying is that when hanging in recovery there seems to be know way to manually force a shutdown or restart.

Could someone help? I could not start my macbook retina 12 inch at all. When I press on power button, there is a start up sound. Then Apple Logo (white) pops up on the screen immediately. The white line first moves fast to start the machine, but it slows down after having run 70%. The rest 30% is super slow. It takes around 3 minutes for the startup white line to reach the end/to complete. Then it is just stuck there forever. The screen is black, except the white Apple logo and the white startup line. Please help.

Thanks for this tip! I am a student in grade 7 and have had my MacBook Air for half a year. I was doing my work on it this morning and it just froze and the keyboard and cursor were both unresponsive. I was really stressed about the consequences of not being able to use my laptop and this article really helped me. Thank you OS X Daily!!

I LOVE YOU! My Mac is alive again! This works really well

Thank you, thank you, thank you. My MacBook is unlocked.

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