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HP Customer Support - Knowledge Base

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HP Notebook PCs - How to Lock or Unlock the Fn (Function) Key

This document is for HP and Compaq notebook computers.
Keyboard function keys (f1 through f12) often have a printed icon that indicates a secondary action, such as muting sound or adjusting display brightness. The secondary functionality is sometimes called action keys mode or hotkeys. On some keyboards, press the fn key to enable that command.
fn key enlarged
The location of the fn key might vary slightly.
    Function keys and the fn key
  1. Function keys (f1 through f12)
  2. fn key
Many notebooks feature a setting that allows you to use the action keys functionality without pressing the fn key each time. Use the correct steps based on your notebook type to enable or disable this functionality.

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