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Why are my f keys not working Mac?

Author

Eleanor Gray

Published Mar 05, 2026

Why are my f keys not working Mac?

If your keyboard doesn't have an Fn key, try holding down the Control key. Choose Apple menu > System Preferences, and then click Keyboard. Select the “Use all F1, F2, etc. keys as standard function keys” checkbox.

Simply so, why won't my F keys work on my Mac?

This problem may have started after the latest Mac OS X update, or could be due to some faulty system setting that was inadvertently set. Toggle function key vs special features In the "Keyboard and Mouse" system preferences, uncheck the option to "Use all F1, F2, etc.

Beside above, how do you reset the function keys on a Mac? 3 Answers

  1. Apple Menu -> System Preferences -> Keyboard.
  2. Untick "Use All F1, F2, etc keys as standard keys"
  3. Click "Keyboard Shortcuts"
  4. Click "Restore Defaults"

Hereof, how do you activate the F keys on a Mac?

On your Mac, choose Apple menu > System Preferences, click Keyboard, then click Keyboard. Select “Use F1, F2, etc. keys as standard function keys” or “Use F1, F2, etc. keys as standard function keys on external keyboards” (depending on your Mac model).

What do I do if my F keys don't work?

How to fix your Function keys

  1. Restart your computer.
  2. Interrupt your computer's normal startup (hit Enter at the launch screen)
  3. Enter your System BIOS.
  4. Navigate to the Keyboard/Mouse setup.
  5. Set the F1-F12 as the primary function keys.
  6. Save and Exit.

Why are my top keys not working?

When the keys on a keyboard don't work, it's usually due to mechanical failure. If this is the case, the keyboard needs to be replaced. Keys on the number pad are not working. Some keys aren't used in certain programs.

How do I lock and unlock the Fn key?

To enable FN Lock on the All in One Media Keyboard, press the FN key, and the Caps Lock key at the same time. To disable FN Lock, press the FN key, and the Caps Lock key at the same time again.

Why is my f3 button not working Mac?

Choose Apple menu > System Preferences, and then click Keyboard. Check whether the “Use all F1, F2, etc. keys as standard function keys” checkbox is checked. If it is check, uncheck it.

What are the f5 and f6 keys on a Mac?

The f5 and f6 light up the led's in the keyboard. the f5 reduces the brightness and the f6 increases the brightness of the led's in the keyboard.

How do you reset the SMC on a Mac?

How to reset the SMC on Mac notebooks:
  1. Choose Apple menu > Shut Down and wait for your Mac to shut down.
  2. Press Shift-Control-Option on the left side of the built-in keyboard, then press the power button at the same time.
  3. Release all keys.
  4. Press the power button again to turn on your Mac.

How do I enable f3 on a Mac?

Helpful answers
  1. Choose System Preferences from the Apple menu.
  2. Click Keyboard.
  3. Click the Keyboard tab if it's not already highlighted.
  4. Select "Use all F1, F2, etc. keys as standard function keys"

What are the F1 through F12 keys on a Mac?

What the F Keys Do on Mac Keyboards
  • F1 – Decrease display brightness.
  • F2 – Increase display brightness.
  • F3 – Open Mission Control.
  • F4 – Open Launchpad.
  • F5 – Decrease keyboard brightness (On compatible notebooks only)
  • F6 – Increase keyboard brightness (On compatible notebooks only)
  • F7 – Skip back (Audio)

How do I get the function keys on Touchbar?

Press and hold the Fn (Function) key on your keyboard to see F1 through F12 in the Touch Bar.

Or use the onscreen keyboard

  1. From the Windows menu, select Windows Ease of Access.
  2. Click On-Screen Keyboard.
  3. Click the Fn key in the onscreen keyboard to make it show all function keys.

How do I use F keys on Macbook Air?

How to Enable Standard Function Keys
  1. On your Mac, click Launchpad > System Preferences.
  2. From there, click Keyboard, then click Use F1, F2, etc. keys as standard function keys.
  3. Now, you'll need to press the Fn key in the lower left corner of your keyboard plus the corresponding function key to complete an action.

What's the F4 key on a Mac?

If you are using Mac, the F4 key is usually used for system features, like opening up the launchpad application or changing the brightness of the screen. If you want to use F4 to play and pause audio in MAXQDA for Mac, you can find an option to do so in “System Preferences > Keyboard”.

How do I unfreeze my Touchbar?

All it takes to force a restart of a frozen MacBook Pro with Touch Bar is to press down on the Touch ID button until the device reboots. Sigh.

What do all the function keys do on a Mac?

How to Use Your Mac's Function Keys
  • F8: Displays thumbnail images of all workspaces.
  • F9: Displays thumbnail images of all windows in a single workspace.
  • F10: Displays all open windows of the currently active program (the program that has one of its windows on “top” of any other windows).
  • F11: Displays the Desktop.

How do you hit F5 on a Mac?

It's one simple keyboard shortcut; Command + R is the Safari equivalent to F5 in a Windows browser. Note that if you want to refresh a webpage in Safari without loading cache, you can use Command+Option+R, or hold down the Shift key and then click the refresh button, or you can empty the Safari cache.

How do I set the Fn key?

To access it on Windows 10 or 8.1, right-click the Start button and select “Mobility Center.” On Windows 7, press Windows Key + X. You'll see the option under “Fn Key Behavior.” This option may also be available in a keyboard settings configuration tool installed by your computer manufacturer.

Why are my function keys reversed?

That's probably due to an extra option in the BIOS made by the manufacturer. When booting press F2 (usually) to get into the BIOS settings and there you can revert back to function keys instead of multimedia. Have you tried to press the numbers lock key to change the fn keys functions?

What is function of F1 to F12 keys?

The function keys or F keys are lined along the top of the keyboard and labeled F1 through F12. These keys act as shortcuts, performing certain functions, like saving files, printing data, or refreshing a page. For example, the F1 key is often used as the default help key in many programs.

Why is Alt F4 not working?

Check if your keyboard has an Fn key somewhere. Usually, you will find it somewhere near the Space key. If yes, press Alt+Fn+F4 shortcut to check if the open window closes on your computer. Some keys have dual functions and the Fn key is used to activate the secondary function of the key.

What is the Fn key on a keyboard?

You may have noticed a key on your keyboard named “Fn”, this Fn key stands for Function, it can be found on the keyboard along the same row as the space bar near the Crtl, Alt or Shift, but why is it there?