How to force close apps on Mac using Activity Monitor. The default Apple program Activity Monitor System gives information about the CPU, Memory, Energy, Disk, and Network. It also allows you to “kill” any system process on Mac. Follow these steps to force quit apps using Activity Monitor: Open Activity Monitor from Launchpad.
Imagine this: you’re working happily on your Mac when the dreaded beach ball of death appears. A program stops responding or worse, the macOS (or OS X) itself refuses to do anything but stare at you, blankly. You have a frozen Mac app or an OS X freeze. Mac OS not responding can lead to lost productivity or even lost work. Let's go over why it happens, what to do when your Mac freezes or when an Mac OS app stops responding, as well as some tips for preventative maintenance.
- Here's our guide on how to Force Quit or view background apps on a Mac. For related (but subtly different) advice, have a look at How to view all open apps on a Mac.
- If you see the dreaded spinning beachball, or an app just won't do anything, you should force quit it. There are several ways to force quit an unresponsive application: Press Command-Alt-Esc and click on the application in the window that opens.
We’ll go over frozen apps first, so if your whole Mac freezes, you can jump to the part about fixing a frozen Mac.
Fixing a frozen app: Why Mac OS apps freeze
There can be a few reasons why apps freeze on Mac. First, sometimes an app freezes on its own, and sometimes it takes down the whole Mac with it. Here's what could be happening:
- Apps freeze in the background.
This could mean there are some apps running that you didn't open, they opened themselves. Probably, they're featured in your startup items, so they automatically launch when you start your Mac. If this happens repeatedly, you need to check what apps are running in the background and launch with the startup. - Processes freeze in the background.
This one is different from apps. One app may be running multiple processes, also system processes can be running on their own. - Too many apps and processes running.
Same logic as with the previous issue. But the question here is how many is too many? There is no definite answer to this, it very much depends on the hardware capacity of your Mac. You can read how to check it and fix it below. - Mac system is too cluttered with junk to run even simple tasks.
This is fixable, you can get a Mac optimizing app like CleanMyMac X for the job. Run a scan to find and remove the stuff you don't need, and there's a high change your apps will stop freezing after that.
What to do if an app freezes on your Mac
Force Open Application Mac
A frozen app becomes unresponsive and brings your work to a halt. In the worst case scenario, it can lead to lost work or a corrupted file. Fortunately, there are several options to try, and most are quite simple. Here’s what you can do when a program freezes on your Mac. First, you need to quit it. Then, if the app keeps freezing when you launch it, try the next options.
How to quit a frozen or unresponsive program
Quitting and then re-starting an app is a good way for Mac OS to handle a crash. You can do this from the OS X Dock or from the Force Quit window. To force-quit an app from the OS Dock, follow these simple steps:
- Click anywhere outside of the program
- Right-click (or Control-click) on the frozen app’s icon in the Dock. A menu appears.
- Hold down the Option key on your keyboard so that Quit in that menu changes to Force Quit.
- Select Force Quit.
That’s it. The app is instantly closed. Re-launch it and try again. If you prefer to work with the Dock hidden — or if the Dock itself is unresponsive — you can simply bring up the Force Quit dialog box to perform the same task.
Here’s how:
Here’s how:
- On your Mac’s keyboard, hit the Option, Command and Escape keys simultaneously (alt + ? + esc).
- The Force Quit dialog box appears with a list of running programs.
- Select the frozen app and then click Force Quit.
- The software will stop running and you’re free to re-launch it at this point.
Best todo app windows. Mac address tracker app. If you’re using a maintenance utility like CleanMyMac X, it has freezes covered. When CleanMyMac spots an unresponsive app, a notification window with a Quit button pops up, so you could force-quit the app without rummaging around in its menu.
CleanMyMac keeps an eye on other performance issues, too, so if you'd like to get alerts like this one when anything goes wrong, download CleanMyMac X for free and give it a try.
How to fix Mac apps that keep freezing
First, check what apps are running in the background and launch with the startup.
To do it go to Settings > Users and Groups > Login items.
Uncheck anything you think might be causing trouble. In fact, just to be sure, uncheck every app and restart your Mac.
To do it go to Settings > Users and Groups > Login items.
Uncheck anything you think might be causing trouble. In fact, just to be sure, uncheck every app and restart your Mac.
Now, find out which process or program is causing the problem. How to see what programs are running on Mac in general? You need launch Activity monitor.
How to find Activity Monitor on Mac: You can do it via the Spotlight Search or just open Launchpad and type it in.
How to open Activity Monitor in Finder: launch it from Applications > Utilities folder > Activity Monitor.
How to find Activity Monitor on Mac: You can do it via the Spotlight Search or just open Launchpad and type it in.
How to open Activity Monitor in Finder: launch it from Applications > Utilities folder > Activity Monitor.
When it opens, you'll probably see hundreds of processes in each tab, but the ones you need now are CPU and Memory tabs. Click on the % CPU sign to sort processes by their influence on your Mac's work. The heaviest ones will show up on the top. They could be your main issue, but don’t rush to deal with them. Some, like kernel, are important system processes and you shouldn’t mess with them.
How to kill a process on Mac OS
However, sometimes your problem does lie within a specific process, you can force quit it (Apple doesn't call it 'to kill a process on Mac', they make it sound fancy). But we're not at Apple HQ, so here's how to kill a Mac OS process:
- Open Activity Monitor.
- You see a list of processes. You can sort them by clicking on %CPU or % Memory in relevant tabs.
- Find the process you want to kill and choose it.
- Click on the octagon with an X sign.
- Done.
Occasionally the problem isn’t with the Mac app, but with the Mac OS itself. If you’re experiencing troubles regularly, it’s time to ask why your Mac keeps freezing. There are several possible reasons, so let’s start with the simplest potential solution.
First, the file you were working with at the time of the freeze may be the issue. To help determine if this is true, try opening a different file with that app and work with it for a while. If it behaves normally, quit and then go back to the file you were working with at the time of the crash. If the errant behavior persists, you may have found your problem. Salvage what you can into a new file.
Make sure that your software and OS X are up-to-date. This is easy to do with software purchased from the Mac App Store. The same goes for OS X. Launch the Mac App Store on your Mac, and you’ll see the list of pending updates, including any for the OS X itself. For third-party software purchased outside of the App Store, visit the manufacturer’s website.
![Force open app mac terminal Force open app mac terminal](/uploads/1/3/4/1/134123879/432783999.jpg)
What to do if Mac OS X freezes
If you cannot force-quit a program, or if the Mac OS is completely unresponsive, it’s time for the most obvious action — a reboot.
You can bring up the Restart/Sleep/Shutdown dialog box instantly by hitting Control plus the Power button. Option four, Shut Down, is selected by default.
Alternatively, you can press and hold the Power button for 1.5-2 seconds to bring up the same dialog box. If things aren’t hopelessly messed up, you’ll get a chance to save your work before your Mac shuts down. If that still doesn’t work, a more drastic option is available.
You can bring up the Restart/Sleep/Shutdown dialog box instantly by hitting Control plus the Power button. Option four, Shut Down, is selected by default.
Alternatively, you can press and hold the Power button for 1.5-2 seconds to bring up the same dialog box. If things aren’t hopelessly messed up, you’ll get a chance to save your work before your Mac shuts down. If that still doesn’t work, a more drastic option is available.
How to force reboot a frozen Mac
Press Command ?, Control and Power (on earlier MacBook models, use the Media Eject key instead of the Power button) to restart your Mac immediately. Note that you won’t have the option of saving anything in this scenario, but it will definitely reboot your icy Mac.
Once your Mac has restarted, you might find that the hard restart has corrupted the file you were working on. Salvage what you can from it and create a new file.
How to fix a frozen Mac
After the reboot, ensure that your Mac has enough free hard drive space for the OS X, and enough free RAM to do what you want. CleanMyMac X can help you here, too. It removes all the useless files that take up space on your hard drive: app leftovers, mail attachments, cache files, and so on. That way, you can free up additional disk space for the OS X without deleting any of your own files. Plus, CleanMyMac X keeps tabs on how much RAM you’re using and lets you free some up with a tap.
Finally, if system cleanup also fails to fix the problem, you can try to run a clean install of your Mac OS. Just follow the instructions: How to clean install macOS Sierra 10.12
Note: If you don’t know which system your Mac runs, click the apple icon in the top left corner and choose About this Mac. You’ll see the name on the popup window.
That’s it, we hope this guide has helped you fix a frozen Mac. Remember, with day-to-day maintenance, your Mac can offer years of reliable work. On the rare occasion of a frozen program or even frozen OS X, these tips will help get you working and productive again. And software like CleanMyMac X can do some of the monitoring and maintenance for you, so you can focus on what needs to be done.
These might also interest you:
To use a keyboard shortcut, press and hold one or more modifier keys and then press the last key of the shortcut. For example, to use Command-C (copy), press and hold the Command key, then the C key, then release both keys. Mac menus and keyboards often use symbols for certain keys, including modifier keys:
On keyboards made for Windows PCs, use the Alt key instead of Option, and the Windows logo key instead of Command.
Some keys on some Apple keyboards have special symbols and functions, such as for display brightness , keyboard brightness , Mission Control, and more. If these functions aren't available on your keyboard, you might be able to reproduce some of them by creating your own keyboard shortcuts. To use these keys as F1, F2, F3, or other standard function keys, combine them with the Fn key.
Cut, copy, paste, and other common shortcuts
- Command-X: Cut the selected item and copy it to the Clipboard.
- Command-C: Copy the selected item to the Clipboard. This also works for files in the Finder.
- Command-V: Paste the contents of the Clipboard into the current document or app. This also works for files in the Finder.
- Command-Z: Undo the previous command. You can then press Shift-Command-Z to Redo, reversing the undo command. In some apps, you can undo and redo multiple commands.
- Command-A: Select All items.
- Command-F: Find items in a document or open a Find window.
- Command-G: Find Again: Find the next occurrence of the item previously found. To find the previous occurrence, press Shift-Command-G.
- Command-H: Hide the windows of the front app. To view the front app but hide all other apps, press Option-Command-H.
- Command-M: Minimize the front window to the Dock. To minimize all windows of the front app, press Option-Command-M.
- Command-O: Open the selected item, or open a dialog to select a file to open.
- Command-P: Print the current document.
- Command-S: Save the current document.
- Command-T: Open a new tab.
- Command-W: Close the front window. To close all windows of the app, press Option-Command-W.
- Option-Command-Esc: Force quit an app.
- Command–Space bar: Show or hide the Spotlight search field. To perform a Spotlight search from a Finder window, press Command–Option–Space bar. (If you use multiple input sources to type in different languages, these shortcuts change input sources instead of showing Spotlight. Learn how to change a conflicting keyboard shortcut.)
- Control–Command–Space bar: Show the Character Viewer, from which you can choose emoji and other symbols.
- Control-Command-F: Use the app in full screen, if supported by the app.
- Space bar: Use Quick Look to preview the selected item.
- Command-Tab: Switch to the next most recently used app among your open apps.
- Shift-Command-5: In macOS Mojave or later, take a screenshot or make a screen recording. Or use Shift-Command-3 or Shift-Command-4 for screenshots. Learn more about screenshots.
- Shift-Command-N: Create a new folder in the Finder.
- Command-Comma (,): Open preferences for the front app.
Sleep, log out, and shut down shortcuts
You might need to press and hold some of these shortcuts for slightly longer than other shortcuts. This helps you to avoid using them unintentionally. Html css app mac.
- Power button: Press to turn on your Mac or wake it from sleep. Press and hold for 1.5 seconds to put your Mac to sleep.* Continue holding to force your Mac to turn off.
- Option–Command–Power button* or Option–Command–Media Eject : Put your Mac to sleep.
- Control–Shift–Power button* or Control–Shift–Media Eject : Put your displays to sleep.
- Control–Power button* or Control–Media Eject : Display a dialog asking whether you want to restart, sleep, or shut down.
- Control–Command–Power button:* Force your Mac to restart, without prompting to save any open and unsaved documents.
- Control–Command–Media Eject : Quit all apps, then restart your Mac. If any open documents have unsaved changes, you will be asked whether you want to save them.
- Control–Option–Command–Power button* or Control–Option–Command–Media Eject : Quit all apps, then shut down your Mac. If any open documents have unsaved changes, you will be asked whether you want to save them.
- Control-Command-Q: Immediately lock your screen.
- Shift-Command-Q: Log out of your macOS user account. You will be asked to confirm. To log out immediately without confirming, press Option-Shift-Command-Q.
* Does not apply to the Touch ID sensor.
Finder and system shortcuts
- Command-D: Duplicate the selected files.
- Command-E: Eject the selected disk or volume.
- Command-F: Start a Spotlight search in the Finder window.
- Command-I: Show the Get Info window for a selected file.
- Command-R: (1) When an alias is selected in the Finder: show the original file for the selected alias. (2) In some apps, such as Calendar or Safari, refresh or reload the page. (3) In Software Update preferences, check for software updates again.
- Shift-Command-C: Open the Computer window.
- Shift-Command-D: Open the desktop folder.
- Shift-Command-F: Open the Recents window, showing all of the files you viewed or changed recently.
- Shift-Command-G: Open a Go to Folder window.
- Shift-Command-H: Open the Home folder of the current macOS user account.
- Shift-Command-I: Open iCloud Drive.
- Shift-Command-K: Open the Network window.
- Option-Command-L: Open the Downloads folder.
- Shift-Command-N: Create a new folder.
- Shift-Command-O: Open the Documents folder.
- Shift-Command-P: Show or hide the Preview pane in Finder windows.
- Shift-Command-R: Open the AirDrop window.
- Shift-Command-T: Show or hide the tab bar in Finder windows.
- Control-Shift-Command-T: Add selected Finder item to the Dock (OS X Mavericks or later)
- Shift-Command-U: Open the Utilities folder.
- Option-Command-D: Show or hide the Dock.
- Control-Command-T: Add the selected item to the sidebar (OS X Mavericks or later).
- Option-Command-P: Hide or show the path bar in Finder windows.
- Option-Command-S: Hide or show the Sidebar in Finder windows.
- Command–Slash (/): Hide or show the status bar in Finder windows.
- Command-J: Show View Options.
- Command-K: Open the Connect to Server window.
- Control-Command-A: Make an alias of the selected item.
- Command-N: Open a new Finder window.
- Option-Command-N: Create a new Smart Folder.
- Command-T: Show or hide the tab bar when a single tab is open in the current Finder window.
- Option-Command-T: Show or hide the toolbar when a single tab is open in the current Finder window.
- Option-Command-V: Move the files in the Clipboard from their original location to the current location.
- Command-Y: Use Quick Look to preview the selected files.
- Option-Command-Y: View a Quick Look slideshow of the selected files.
- Command-1: View the items in the Finder window as icons.
- Command-2: View the items in a Finder window as a list.
- Command-3: View the items in a Finder window in columns.
- Command-4: View the items in a Finder window in a gallery.
- Command–Left Bracket ([): Go to the previous folder.
- Command–Right Bracket (]): Go to the next folder.
- Command–Up Arrow: Open the folder that contains the current folder.
- Command–Control–Up Arrow: Open the folder that contains the current folder in a new window.
- Command–Down Arrow: Open the selected item.
- Right Arrow: Open the selected folder. This works only when in list view.
- Left Arrow: Close the selected folder. This works only when in list view.
- Command-Delete: Move the selected item to the Trash.
- Shift-Command-Delete: Empty the Trash.
- Option-Shift-Command-Delete: Empty the Trash without confirmation dialog.
- Command–Brightness Down: Turn video mirroring on or off when your Mac is connected to more than one display.
- Option–Brightness Up: Open Displays preferences. This works with either Brightness key.
- Control–Brightness Up or Control–Brightness Down: Change the brightness of your external display, if supported by your display.
- Option–Shift–Brightness Up or Option–Shift–Brightness Down: Adjust the display brightness in smaller steps. Add the Control key to this shortcut to make the adjustment on your external display, if supported by your display.
- Option–Mission Control: Open Mission Control preferences.
- Command–Mission Control: Show the desktop.
- Control–Down Arrow: Show all windows of the front app.
- Option–Volume Up: Open Sound preferences. This works with any of the volume keys.
- Option–Shift–Volume Up or Option–Shift–Volume Down: Adjust the sound volume in smaller steps.
- Option–Keyboard Brightness Up: Open Keyboard preferences. This works with either Keyboard Brightness key.
- Option–Shift–Keyboard Brightness Up or Option–Shift–Keyboard Brightness Down: Adjust the keyboard brightness in smaller steps.
- Option key while double-clicking: Open the item in a separate window, then close the original window.
- Command key while double-clicking: Open a folder in a separate tab or window.
- Command key while dragging to another volume: Move the dragged item to the other volume, instead of copying it.
- Option key while dragging: Copy the dragged item. The pointer changes while you drag the item.
- Option-Command while dragging: Make an alias of the dragged item. The pointer changes while you drag the item.
- Option-click a disclosure triangle: Open all folders within the selected folder. This works only when in list view.
- Command-click a window title: See the folders that contain the current folder.
- Learn how to use Command or Shift to select multiple items in the Finder.
- Click the Go menu in the Finder menu bar to see shortcuts for opening many commonly used folders, such as Applications, Documents, Downloads, Utilities, and iCloud Drive.
Document shortcuts
How to shut down all apps on mac. The behavior of these shortcuts may vary with the app you're using.
- Command-B: Boldface the selected text, or turn boldfacing on or off.
- Command-I: Italicize the selected text, or turn italics on or off.
- Command-K: Add a web link.
- Command-U: Underline the selected text, or turn underlining on or off.
- Command-T: Show or hide the Fonts window.
- Command-D: Select the Desktop folder from within an Open dialog or Save dialog.
- Control-Command-D: Show or hide the definition of the selected word.
- Shift-Command-Colon (:): Display the Spelling and Grammar window.
- Command-Semicolon (;): Find misspelled words in the document.
- Option-Delete: Delete the word to the left of the insertion point.
- Control-H: Delete the character to the left of the insertion point. Or use Delete.
- Control-D: Delete the character to the right of the insertion point. Or use Fn-Delete.
- Fn-Delete: Forward delete on keyboards that don't have a Forward Delete key. Or use Control-D.
- Control-K: Delete the text between the insertion point and the end of the line or paragraph.
- Fn–Up Arrow: Page Up: Scroll up one page.
- Fn–Down Arrow: Page Down: Scroll down one page.
- Fn–Left Arrow: Home: Scroll to the beginning of a document.
- Fn–Right Arrow: End: Scroll to the end of a document.
- Command–Up Arrow: Move the insertion point to the beginning of the document.
- Command–Down Arrow: Move the insertion point to the end of the document.
- Command–Left Arrow: Move the insertion point to the beginning of the current line.
- Command–Right Arrow: Move the insertion point to the end of the current line.
- Option–Left Arrow: Move the insertion point to the beginning of the previous word.
- Option–Right Arrow: Move the insertion point to the end of the next word.
- Shift–Command–Up Arrow: Select the text between the insertion point and the beginning of the document.
- Shift–Command–Down Arrow: Select the text between the insertion point and the end of the document.
- Shift–Command–Left Arrow: Select the text between the insertion point and the beginning of the current line.
- Shift–Command–Right Arrow: Select the text between the insertion point and the end of the current line.
- Shift–Up Arrow: Extend text selection to the nearest character at the same horizontal location on the line above.
- Shift–Down Arrow: Extend text selection to the nearest character at the same horizontal location on the line below.
- Shift–Left Arrow: Extend text selection one character to the left.
- Shift–Right Arrow: Extend text selection one character to the right.
- Option–Shift–Up Arrow: Extend text selection to the beginning of the current paragraph, then to the beginning of the following paragraph if pressed again.
- Option–Shift–Down Arrow: Extend text selection to the end of the current paragraph, then to the end of the following paragraph if pressed again.
- Option–Shift–Left Arrow: Extend text selection to the beginning of the current word, then to the beginning of the following word if pressed again.
- Option–Shift–Right Arrow: Extend text selection to the end of the current word, then to the end of the following word if pressed again.
- Control-A: Move to the beginning of the line or paragraph.
- Control-E: Move to the end of a line or paragraph.
- Control-F: Move one character forward.
- Control-B: Move one character backward.
- Control-L: Center the cursor or selection in the visible area.
- Control-P: Move up one line.
- Control-N: Move down one line.
- Control-O: Insert a new line after the insertion point.
- Control-T: Swap the character behind the insertion point with the character in front of the insertion point.
- Command–Left Curly Bracket ({): Left align.
- Command–Right Curly Bracket (}): Right align.
- Shift–Command–Vertical bar (|): Center align.
- Option-Command-F: Go to the search field.
- Option-Command-T: Show or hide a toolbar in the app.
- Option-Command-C: Copy Style: Copy the formatting settings of the selected item to the Clipboard.
- Option-Command-V: Paste Style: Apply the copied style to the selected item.
- Option-Shift-Command-V: Paste and Match Style: Apply the style of the surrounding content to the item pasted within that content.
- Option-Command-I: Show or hide the inspector window.
- Shift-Command-P: Page setup: Display a window for selecting document settings.
- Shift-Command-S: Display the Save As dialog, or duplicate the current document.
- Shift–Command–Minus sign (-): Decrease the size of the selected item.
- Shift–Command–Plus sign (+): Increase the size of the selected item. Command–Equal sign (=) performs the same function.
- Shift–Command–Question mark (?): Open the Help menu.
Other shortcuts
For more shortcuts, check the shortcut abbreviations shown in the menus of your apps. Every app can have its own shortcuts, and shortcuts that work in one app might not work in another.
Mac Force Open App
- Apple Music shortcuts: Choose Help > Keyboard shortcuts from the menu bar in the Music app.
- Other shortcuts: Choose Apple menu > System Preferences, click Keyboard, then click Shortcuts.
Learn more
- Create your own shortcuts and resolve conflicts between shortcuts
- Change the behavior of the function keys or modifier keys