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Welcome to HP Customer Support

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

This document is for HP and Compaq notebook computers.
Some keyboard function keys (f1 through f12) have a printed icon that indicates a secondary action, such as muting sound or adjusting display brightness. Normally, you must press the fn key and the function key with an icon to perform the secondary action.
    Function keys and the fn key
  1. Function keys (f1 through f12)
  2. fn key
Many notebooks have an action key mode that enables the secondary action without pressing the fn key first. Read the steps for your notebook type to enable this feature.

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