When an app stops responding, force quit it from the Force Quit Applications window

When a Mac process freezes or stops responding, the fastest way to close it is through Force Quit, which bypasses the normal shutdown process. You do not need to restart your Mac or lose work in other programs — you can force quit just the stuck app and keep working.

The most direct method is to press Command + Option + Escape on your keyboard. This opens the Force Quit Applications window, which lists every open program. Click the frozen app's name to select it, then click the Force Quit button. The app closes when ready, even if it is completely unresponsive.

If the keyboard shortcut does not work — which is rare but can happen if the entire system is very slow — you can reach the same window through the Apple menu. Click the Apple logo in the top-left corner of your screen, then select Force Quit from the dropdown menu. The window that opens is identical to the one the keyboard shortcut brings up.

Key Takeaways

  • Press Command + Option + Escape to open the Force Quit Applications window without restarting your Mac.
  • Select the frozen app from the list and click Force Quit to close it when ready.
  • Force quitting one app does not affect other open programs or unsaved work in them.
  • If an app freezes repeatedly, restart your Mac after force quitting it to clear temporary files that may be causing the problem.
  • You can also force quit through the Apple menu if the keyboard shortcut does not respond.

What happens to your work when you force quit

When you force quit an app, any unsaved work in that specific program is lost. If you were editing a document and had not saved it, those changes disappear. However, force quitting affects only the app you selected — all other open programs continue running normally, and any work saved in them remains safe.

This is why force quit is different from restarting your Mac. A restart closes everything and clears temporary files, which can fix deeper problems. Force quit is a quick fix for a single stuck app when you need to keep working in other programs without interruption.

Why apps freeze and what to do after force quitting

Apps freeze for several reasons: they run out of memory, encounter a bug, or get stuck waiting for a response from another program or server. Force quitting stops the frozen process, but it does not fix the underlying cause. If the same app freezes again within a few hours, the problem is likely something that will not go away on its own.

After force quitting an app that froze, restart your Mac. A restart clears temporary files and memory that may have been corrupted, and it gives the system a fresh start. Restart by clicking the Apple menu, selecting Shut Down, waiting for your Mac to power off completely, then pressing the power button to turn it back on. This takes a few minutes but often prevents the app from freezing again.

If the app continues to freeze after a restart, check whether an update is available. Open the App Store (or the app's own menu if it is not from the App Store), look for updates, and install any that are listed. Frozen apps are often running outdated code with known bugs that the developer has already fixed.

Using Activity Monitor if Force Quit does not work

In extremely rare cases, the Force Quit window itself may not open. If Command + Option + Escape does nothing and the Apple menu is unresponsive, you can force quit through Activity Monitor, a deeper system tool. Press Command + Space to open Spotlight search, type Activity Monitor, and press Enter.

Activity Monitor shows every process running on your Mac. Find the frozen app's name in the list — it may show as "not responding" next to its name. Click it once to select it, then click the X button in the top-left corner of the Activity Monitor window. A dialog asks you to confirm; click Force Quit. The app closes when ready.

Activity Monitor is more powerful than the Force Quit window because it can close processes even when the normal system menus are sluggish. However, it is also more technical and shows many processes you should never close. Stick to the keyboard shortcut or Apple menu unless those methods genuinely do not work.

Preventing apps from freezing in the first place

The best way to avoid force quitting is to keep your apps updated. Developers release updates that fix bugs causing freezes, improve memory use, and patch security problems. Check for updates regularly by opening the App Store, clicking your profile picture in the top-right corner, and selecting Update Available to see which apps have new versions waiting.

You can also set apps to update automatically. In the App Store, click your profile picture, select Settings, scroll to Automatic Updates, and toggle on App Updates. This way, apps update in the background without you having to remember.

If you have many apps open at once, your Mac may run low on memory and cause programs to freeze. Close apps you are not actively using, especially web browsers with many tabs open. Check how much memory is available by opening Activity Monitor, clicking the Memory tab, and looking at the number next to Memory Used. If it is close to your Mac's total memory (shown at the bottom), close some apps.

Frequently Asked Questions

Will force quitting damage my Mac?

No. Force quitting closes a single app without affecting your Mac's system files or other programs. It is a safe operation designed into macOS for exactly this situation. The only loss is unsaved work in the app you force quit.

Can I force quit the Finder or system apps?

You can select Finder in the Force Quit window, but clicking Force Quit will restart it rather than close it permanently. System apps like Finder are designed to restart automatically. For most situations, you do not need to force quit Finder — force quit the app that is actually frozen instead.

What if the app opens again after I force quit it?

Some apps are set to reopen automatically when you restart your Mac. If you do not want the app to open again, go to System Settings, click General, then Login Items, find the app's name, and click the minus button to remove it from the startup list.

Is force quit the same as closing an app normally?

No. Closing an app normally (Command + Q or File menu > Quit) gives the app time to save work and shut down gracefully. Force quit skips that process and closes the app when ready. Use normal quit when the app is responding, and force quit only when it is frozen.

Do I need to restart my Mac every time I force quit an app?

Not every time, but you should restart if the same app freezes more than once in a day. A single freeze can be a temporary glitch; repeated freezes suggest a deeper problem that a restart can help clear. If the app keeps freezing after a restart, the issue is likely the app itself, and an update or reinstall may be needed.