How to Fix Alt + F4 Not Working in Windows 11

The Alt + F4 keyboard shortcut is one of the most commonly used commands in Windows 11. It allows users to quickly close the active application or open the shutdown dialog when used on the desktop. When Alt + F4 stops working, it can disrupt workflow and make it difficult to close programs efficiently.

This issue may occur due to keyboard hardware problems, disabled function key behavior, background software conflicts, corrupted system files, or incorrect keyboard settings. Since Alt + F4 depends on both the keyboard hardware and Windows shortcut handling, troubleshooting requires checking both system configuration and input settings.

This guide explains how to fix Alt + F4 not working in Windows 11 using structured troubleshooting steps.

How to Fix Alt + F4 Not Working in Windows 11

Follow the solutions below in order until the shortcut functions properly again.

1. Check Keyboard Function Key Behavior

Some keyboards require the Fn key to activate function keys.

1. Press Alt + Fn + F4 instead of Alt + F4.
2. Check whether the shortcut works.
3. If it works, enable Function Key Lock (Fn Lock) on your keyboard.
4. Look for a key labeled Fn Lock or press Fn + Esc to toggle it.

Enabling Fn Lock ensures function keys operate normally.

2. Test the Keyboard on Another Application

The issue may be limited to a specific program.

1. Open another application, such as Notepad.
2. Press Alt + F4.
3. Check if the application closes.

If it works in other apps, the problem may be application-specific.

3. Restart Windows Explorer

Explorer handles many desktop-level shortcuts.

1. Press Ctrl + Shift + Esc to open Task Manager.
2. Locate Windows Explorer.
3. Right-click it and select Restart.
4. Try using Alt + F4 again.

Restarting Explorer refreshes shortcut handling processes.

4. Update or Reinstall Keyboard Drivers

Corrupted drivers can interfere with shortcut commands.

1. Press Windows + X and select Device Manager.
2. Expand Keyboards.
3. Right-click your keyboard device and select Update driver.
4. Choose Search automatically for drivers.
5. Restart your computer after updating.

If updating does not resolve the issue:

1. Right-click the keyboard device again.
2. Select Uninstall device.
3. Restart your PC to reinstall the driver automatically.

Reinstalling drivers can fix input-related issues.

5. Disable Sticky Keys and Filter Keys

Accessibility features may interfere with shortcut combinations.

1. Press Windows + I to open Settings.
2. Click Accessibility.
3. Select Keyboard.
4. Ensure Sticky Keys and Filter Keys are turned Off.
5. Test the shortcut again.

Disabling these features restores normal key behavior.

6. Run System File Checker (SFC)

Corrupted system files may affect shortcut functionality.

1. Press Windows + S, type cmd.
2. Right-click Command Prompt and select Run as administrator.
3. Type the following command and press Enter:sfc /scannow
4. Wait for the scan to complete.
5. Restart your computer.

SFC repairs damaged Windows components that may affect shortcuts.

7. Check for Background Software Conflicts

Certain applications may override keyboard shortcuts.

1. Press Ctrl + Shift + Esc to open Task Manager.
2. Review running applications.
3. Close unnecessary background programs.
4. Test Alt + F4 again.

If the shortcut works after closing a specific app, that program may be interfering.

8. Check for Windows Updates

Outdated Windows builds may contain shortcut-related bugs.

1. Press Windows + I to open Settings.
2. Click Windows Update.
3. Select Check for updates.
4. Install all available updates.
5. Restart your PC.

Updating Windows ensures improved stability and functionality.

Conclusion

Alt + F4 not working in Windows 11 is typically caused by function key settings, driver issues, accessibility features, software conflicts, or corrupted system files. By checking Fn Lock behavior, updating keyboard drivers, disabling Sticky Keys, restarting Explorer, and running system scans, you can restore normal shortcut functionality.