Acer Extensa 4100 - Manual (Page 52)

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BIOS Utility
The BIOS Utility is a hardware configuration program built into your
computer's BIOS.
Your computer is already properly configured and optimised, and you
do not need to run this utility. However, if you encounter
configuration problems, you may need to run it.
To activate the BIOS Utility, press <F2> during the POST; while the
Notebook PC logo is being displayed.
Boot sequence
To set the boot sequence in the BIOS Utility, activate the BIOS Utility,
then select “Boot” from the categories listed at the top of the screen.
Disc to Disc Recovery enable
To enable Disc to Disc Recovery (Hard Disk Recovery), activate the BIOS
utility, then select “Main” from the categories listed at the top of the
screen. Find “D2D Recovery” at the bottom of the screen and use the
F5/F6 keys to set this value to “Enabled”.
Password
To set a password on boot, activate the BIOS Utility, then select
“Security” from the categories listed at the top of the screen. Find
“Password on boot:” and use the F5/F6 keys to “Enable” this feature.