When an app stops responding, force quit is your fastest fix
When a Mac application freezes or stops responding, you do not have to restart your computer. You can force quit the stuck app in seconds using the keyboard shortcut Command+Option+Esc, which opens the Force Quit window. Select the frozen app from the list and click "Force Quit" — the app closes immediately, and you can reopen it or move on to something else.
Force quitting does not harm your Mac or other open apps. It simply stops the frozen program from running. You may lose unsaved work in that app, but everything else stays intact.
Key Takeaways
- Press Command+Option+Esc to open the Force Quit window on any Mac, then select the stuck app and click "Force Quit".
- An app that is not responding will show "(not responding)" next to its name in the Force Quit window.
- You can also force quit through the Activity Monitor app if the keyboard shortcut does not work.
- Force quitting closes only the frozen app and does not affect other programs or your Mac's system.
- Unsaved work in the force-quit app will be lost, but you can reopen it immediately after.
Using the keyboard shortcut to force quit
The fastest way to force quit an app is with the keyboard shortcut. Press Command+Option+Esc at the same time. A window titled "Force Quit Applications" will appear on your screen within a second or two.
Look through the list of open apps for the one that is frozen or not responding. Apps that have stopped working will show the text "(not responding)" next to their name. Click on that app to select it, then click the blue "Force Quit" button in the bottom right of the window. The app closes immediately.
After the app closes, you can open it again right away. The Force Quit window stays open, so close it by clicking the red close button in the top left corner or by pressing Command+W.
Finding the stuck app in Activity Monitor
If the keyboard shortcut does not work, or if you prefer a different method, you can force quit through Activity Monitor. Open Activity Monitor by pressing Command+Space to open Spotlight search, then type "Activity Monitor" and press Enter.
Activity Monitor shows every app and process running on your Mac. Look for the app you want to close in the list. Apps that are frozen or not responding often show a red circle with an X next to their name, though not always. Click on the app name to select it.
Once the app is selected, click the button that looks like a stop sign in the top left of the Activity Monitor window (it says "Quit Process" when you hover over it). A confirmation dialog appears — click "Force Quit" to close the app immediately. Close Activity Monitor when you are done.
What happens when you force quit an app
Force quitting stops a program from running right away. The app closes completely, and any work you had open in that app but did not save is lost. This is the trade-off: you get your Mac back to normal, but you lose unsaved changes.
Force quitting does not delete the app itself, damage your Mac, or affect other open programs. Your other apps keep running without interruption. The only thing that stops is the frozen app.
After you force quit, you can reopen the app immediately. Some apps will ask if you want to recover your previous work when they start up again — if that happens, you can choose to restore what was open before the freeze.
When to force quit versus waiting for the app to respond
If an app is slow but still responding to clicks, give it a few seconds before force quitting. Sometimes an app just needs time to finish what it is doing. If you can still click buttons or type, the app is working — it is just slow.
Force quit when the app truly stops responding: the spinning wheel does not go away, buttons do not work when you click them, and the app does not react to keyboard input. If you have waited 30 seconds and nothing has changed, force quitting is the right move.
Do not force quit an app just because it is taking a long time to save a large file or process data. Let it finish. Force quit is for apps that are genuinely frozen, not just busy.
Preventing apps from freezing in the first place
Some apps freeze because they run out of memory or because your Mac is running too many programs at once. You can reduce freezes by closing apps you are not using and restarting your Mac once a week or so.
Keep your Mac's operating system and your apps up to date. Developers release updates that fix bugs and crashes. Check for updates by going to System Settings, clicking "General," then "Software Update." For individual apps, check the App Store or the app's own menu for updates.
If one particular app freezes often, try uninstalling and reinstalling it. Sometimes a fresh install fixes problems that updates do not catch. You can also check the app developer's website or support page to see if other people have reported the same issue and what the fix is.
Frequently Asked Questions
Will force quitting hurt my Mac or other apps?
No. Force quitting closes only the frozen app. Your Mac and all other open programs are not affected. The only loss is unsaved work in the app you force quit.
What if the Force Quit window does not appear when I press Command+Option+Esc?
Try pressing the keys again — sometimes it takes a moment. If it still does not work, open Activity Monitor instead by pressing Command+Space, typing "Activity Monitor," and pressing Enter. Then select the stuck app and click the stop sign button.
Can I force quit multiple apps at once?
In the Force Quit window, you can select only one app at a time. Click one app, force quit it, then repeat for any others. In Activity Monitor, you can select multiple apps by holding Command and clicking each one, then click the stop sign button to quit them all together.
Will the app ask me to save my work before force quitting?
No. Force quit closes the app immediately without any save dialog. Any unsaved work in that app is lost. This is why force quit is a last resort — use it only when the app is truly frozen and not responding.
Why does an app keep freezing even after I force quit and reopen it?
If an app freezes repeatedly, try restarting your Mac first. If it still freezes, the app may have a bug or may need an update. Check the App Store or the developer's website for a newer version. If updates do not help, uninstall the app and reinstall it fresh.