Special Keys And Buttons; Thinkvantage Button; Numeric Keypad - Lenovo ThinkPad T420 User Manual

• Also "Recovery tool" on page 105 is provided on your computer hard disk or solid state drive. For more
information, see Chapter 5 "Recovery overview" on page 103.
Print the following sections and keep them with your computer in case you are unable to access this
online help when necessary.
• "Installing a new operating system" on page 169.
• "Computer stops responding" on page 203.
• "Power problems" on page 228.

Special keys and buttons

Your computer has several special keys and buttons.

ThinkVantage button

You can use the ThinkVantage button to interrupt the startup sequence of your computer and start the
Rescue and Recovery workspace, which runs independently of the Windows operating system and is hidden
from it. If Windows is not running properly, you may need to do the following:
• Get the current system information.
• Rescue a file from your Windows environment or restore back-up files, provided you have made backups
by use of the Rescue and Recovery program.
• Configure your computer or start the ThinkPad Setup.
All this can be achieved from the Rescue and Recovery workspace. Turn on the computer; then, while the
"To interrupt normal startup, press the blue ThinkVantage button" message is displayed at the lower-left of
the screen, press the ThinkVantage button. The Rescue and Recovery screen opens.

Numeric keypad

The keyboard has keys that, when enabled, work as a 10-key numeric keypad.
To enable or disable the numeric keypad, press and hold Shift or Fn and then press NmLk (ScrLk).
Note: The next drawing shows the locations of the keys that serve as the 10-key numeric keypad. The
locations of these keys are the same on every keyboard, though for computers using different languages,
different characters are printed on the keytops.
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Chapter 2 Using your computer
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