Lenovo ThinkPad T21 English - 46L4325 - ThinkPad T20, T21User's Reference guid - Page 25

Setup Utility menu.

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Starting BIOS Setup Utility 6. Press F3 or Esc to exit from the submenu. If you are in a nested submenu, press Esc repeatedly until you reach the IBM BIOS Setup Utility menu. Note: If you need to restore the settings to their original state as of the time of purchase, press the F9 key to load the default settings. Also, the Restart submenu offers you such options as loading the default settings or discarding the changes. 7. Select Restart; then press Enter. Change the option you want; then press Enter. Your computer restarts. Chapter 1. System overview 9

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Starting BIOS Setup Utility
6. Press F3 or Esc to exit from the submenu.
If you are in a nested
submenu, press Esc repeatedly until you reach the IBM BIOS
Setup Utility menu.
Note:
If you need to restore the settings to their original state as
of the time of purchase, press the F9 key to load the
default settings.
Also, the Restart submenu offers you
such options as loading the default settings or discarding
the changes.
7. Select
Restart
; then press Enter.
Change the option you want;
then press Enter. Your computer restarts.
Chapter 1.
System overview
9