Force Quit not working on Mac? Here's how to fix it (and prevent apps from freezing)

If Force Quit stops responding, use built-in Activity Monitor or Terminal to quit the apps. If this doesn’t help and your Mac is completely frozen, force restart it.

Here’s a list of every fix covered in this article, matched to the specific problem. Detailed instructions follow below:

What happened?	Do this	How to access	Success rate?
Force Quit window won't open	Use Apple menu instead	Click Apple logo > Force Quit	High
Keyboard shortcut fails	Try Activity Monitor	Applications > Utilities	Very high
App completely frozen	Terminal kill command	killall [AppName]	Highest
Full system freeze	Force restart	Hold Power for 10 seconds	Always works
Repeated freezing	QuitAll app	Menu bar helper	Preventive

How to force quit when the window won't open?

If Command + Option + Esc does nothing, open the Apple menu in the top-left corner and click Force Quit in the drop-down. This bypasses the keyboard shortcut and opens the same window through a different pathway:

Still not working? Try force quit via the Dock:

1. Right-click the frozen app's icon in the Dock.
2. Hold down the Option key.
3. Click Force Quit in the menu that appears.

   

The Dock method works particularly well because it targets the specific app directly. I keep this trick in my back pocket for those times when multiple apps freeze simultaneously.

How to use Activity Monitor to force quit apps?

Activity Monitor is your most powerful tool when Force Quit fails, as it shows every process running on your system and lets you terminate them individually.

Here's how to use Activity Monitor effectively:

1. Open Finder. 
2. Click Applications in the sidebar > Utilities > Activity Monitor.
3. Find the frozen app in the process list (use the search bar if needed).
4. Click the problematic app once.
5. Click the X button in the toolbar.

   

6. Choose Force Quit when prompted.

   

Activity Monitor shows CPU and memory usage for each process, helping you identify resource-heavy programs. If an app shows over 100% CPU usage or its memory keeps climbing, it's definitely the problem. I recommend keeping Activity Monitor in your Dock for quick access during emergencies.

How to force quit using Terminal?

Terminal bypasses the graphical interface entirely, making it perfect when your screen is partially frozen or unresponsive.

To force quit via Terminal:

1. Open Terminal from Applications > Utilities.
2. Type killall [AppName] and press Return.
3. Replace [AppName] with the exact name of the frozen app.

   

For example, to quit Safari, you'd type killall Safari. The app name is case-sensitive, so "safari" won't work. If you're unsure about the exact name, type ps aux | grep [partial-name] to search for running processes.

For stubborn apps that won't respond to killall, use the nuclear option: sudo killall -9 [AppName]. This sends a SIGKILL signal that immediately terminates the process. You'll need to enter your admin password after typing this command.

What if the entire Mac is frozen?

When your Mac completely freezes — no cursor movement or keyboard response — you need a force restart.

To force restart your Mac:

1. Press and hold the power button for 10 seconds.
2. Wait until the screen goes completely black.
3. Release the button and wait 5 more seconds.
4. Press the power button once to turn your Mac back on.

On MacBooks with Touch ID, the Touch ID button doubles as the power button. For Mac desktops, the power button is typically on the back of the display or the computer unit itself. Based on official Apple documentation, this method works on all Mac models and won't damage your hardware.

After a force restart, macOS might take longer to boot as it performs system checks. Let it complete this process — interrupting it could cause additional problems.

For a full breakdown of what to do when your Mac won't respond at all, see this guide on how to fix a frozen Mac.

How to prevent apps from freezing?

I've found that a nearly full disk is one of the most common causes of freezing. macOS needs free space to manage virtual memory and temporary files.

Regular maintenance makes a huge difference:

• Restart your Mac weekly to clear memory caches
• Update apps and macOS when updates become available
• Close browser tabs you're not actively using
• Monitor background processes with Activity Monitor

For automated prevention, I use QuitAll from Setapp. It lives in my menu bar and lets me quickly close multiple apps at once, preventing memory buildup. The app also shows which background processes are running, making it easy to spot resource-heavy apps before they cause problems.

App Tamer is another helpful tool that automatically slows down or stops CPU-hungry background apps. I started using it after noticing my Mac would slow to a crawl whenever I had a video export running alongside a browser with too many tabs. It's particularly useful if you work with resource-intensive applications like video editors or development environments.

Both QuitAll and App Tamer are included in a Setapp membership — one subscription that gives you access to 270+ Mac and iOS apps, from productivity tools to system utilities, for one flat monthly fee. Try it free for 7 days.

If apps keep freezing even when you follow these recommendations, the problem is likely app-specific rather than system-wide. See how to stop apps from crashing on Mac for a targeted fix.

How to use safe mode to test Force Quit issues

Safe mode starts your Mac with minimal system extensions and performs basic disk checks. It's perfect for diagnosing whether third-party software causes your Force Quit problems.

To enter safe mode on Intel Macs:

1. Shut down your Mac completely.
2. Press the power button to start up.
3. Immediately press and hold the Shift key.
4. Release Shift when you see the login window.

For Apple Silicon Macs (M1 and later):

1. Shut down your Mac.
2. Press and hold the power button until you see Loading startup options.
3. Choose your startup disk.
4. Hold the Shift key and click Continue in safe mode.

In safe mode, test whether Force Quit works normally. If it does, a third-party app or extension is likely causing conflicts. Restart normally and remove recently installed software one by one until you find the culprit.

Why is Force Quit not responding?

Force Quit can fail for several reasons. The most common ones are:

• Insufficient system memory. When your Mac runs out of RAM, even system functions struggle to respond. I've also seen this happen when an app crashes so severely that it blocks system-level commands.
• Problems with keyboard. Your keyboard might have sticky keys enabled, or you may be pressing the wrong combination. On newer MacBooks with Touch Bar, the Escape key might not register properly if the Touch Bar itself is frozen.
• System corruption. This typically happens after a failed update or when disk permissions get scrambled. Running First Aid in Disk Utility often resolves these deeper issues.

Whatever the cause, the fixes below cover every scenario — from a simple keyboard workaround to a full system restart.

Fix force quit failures and stop them from coming back

Force Quit failures are frustrating, but now you have multiple solutions in your toolkit. From Activity Monitor to Terminal commands, these methods help you regain control of your Mac. Remember that prevention is key — regular restarts, software updates, and proper storage management prevent most freezing issues.

For ongoing protection, try QuitAll and App Tamer through Setapp's free trial. These apps help prevent the memory buildup and runaway processes that cause Force Quit failures in the first place. With the right tools, you'll spend less time troubleshooting and more time being productive. Start your 7-day free trial.

FAQ

Why won't the Force Quit window open on my Mac?

If Option + Command + Esc does nothing, click the Apple menu and choose Force Quit. Still stuck? Press Control + Option + Command + Power to restart, or open Activity Monitor (Applications > Utilities) and stop the frozen app there. Keep Activity Monitor in your Dock for quick access.

Is force quitting bad for my Mac?

Your computer won't be damaged by a force quit, but any unsaved changes in the application will be wiped out. If you find yourself force quitting a lot, update the app, free up disk space, or restart your Mac to clear memory.

How do I force shut down my Mac if nothing responds?

Press and hold the power button for about 10 seconds until the screen goes dark. Wait a few seconds, then press it once to turn the Mac back on. Use this only when the keyboard, mouse, and Force Quit options all fail.

Why does my Mac freeze, and how can I stop it from happening?

Apps hang when your Mac runs low on memory, the software has a bug, or macOS needs an update. Keep at least 10 GB of free storage, close heavy browser tabs, and install the latest macOS Tahoe updates. Also, run a quick malware scan once a month — bad software can slow things down too.

Will I lose work if I force quit an app?

Most likely yes — anything you haven't saved can disappear. Some apps auto-save, but not all. When possible, give the app a minute to catch up or try a normal Quit before forcing it.