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1 Function keys
Volume and mute keys
• F1: Mutes or unmutes the speakers.
If you mute the sound and turn off your computer, the sound will remain muted when you turn on your
computer again. To turn on the sound, press F2 or F3.
• F2: Decreases the speaker volume.
• F3: Increases the speaker volume.
• F4: Mutes or unmutes the microphones.
Display management keys
• F5: The computer display becomes dimmer.
• F6: The computer display becomes brighter.
You can temporarily change the computer display brightness by pressing these two keys. To change the
default brightness level, right-click the battery status icon in the Windows notication area, then click Adjust
screen brightness and make changes as desired.
• F7: Switches the display output location between the computer display and an external monitor.
Other functions
• F8: Enables or disables the Airplane mode.
The Airplane mode disables the wireless features of your computer to comply with airline regulations.
When you press this key, a list of wireless connections is displayed. You can quickly turn on or turn off
all the wireless network connections.
• F9: Opens the Settings charm.
• F10: Opens the Search charm.
• F11: Press this key to view the programs that you have opened.
• F12: Press this key to view all programs.
• Fn Lock (Esc): Opens the ThinkPad Keyboards Properties window where you can toggle the F1-F12
key functionality.
• Fn+B: Has the same function as the Break key.
20 User Guide