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Disable The Fn + Function Key Combination on Certain Models
On most HP and Compaq notebook computers, it is necessary to press and hold the function key (fn) while pressing one of the f1 through f12 keys to activate the default functions; such as, increasing or decreasing the brightness of the display, the sound volume, sleep, keyboard lock, etc. On the HP Envy notebooks and other notebooks with advanced BIOS options, the function keys can be configured so that it is not necessary to press and hold the fn key.
Figure : Location of function keys
Image showing the  location of the function keys f1 through f12 on the top row of the keyboard and the fn key on the bottom left of the keyboard
Function Keys f1 through f12
Configurable Function key fn
Disable or enable fn in the BIOS
To disable, or enable, the function key (fn) in the BIOS, do the following steps.
  1. Press the power button to turn on the computer.
  2. Press the f10 key to open the BIOS setup window.
  3. Press the right-arrow or left-arrow keys to navigate to the System Configuration option.
    Figure : BIOS setup window
    BIOS setup window with the System Configuration option and Action Keys Mode selected
  4. Press the up-arrow or down-arrow keys to navigate to the Action Keys Mode option, and then press the enter key to display the Enable / Disable menu.
  5. Select the desired mode:
    • Disabled: Requires pressing and holding the function key (fn) while pressing one of the f1 through f12 keys to use the action indicated on the action key.
      For example, on some computer models, if the Action Keys Mode is Disabled, pressing the f11 key will minimize and maximize a web browser if open. Alternatively, pressing and holding the fn + f11 keys will mute the sound.
      The action keys may vary depending on the model of notebook.
    • Enabled: Requires pressing only one of the f1 through f12 keys to use the action as indicated on the action key.
      For example, on some computer models, if the Action Keys Mode is Enabled, pressing f11 will mute the sound as indicated on the action key. Alternatively, pressing and holding fn + f11 will minimize and maximize a web browser if open.
      The action keys may vary depending on the model of notebook.
  6. Press the f10 key to save the selection and restart the computer.
The function key (fn) option can be reset at any time.