Get to know UEFI/BIOS
Change settings in UEFI/BIOS setup utility
This section introduces what is UEFI/BIOS and the operations you can perform in its setup utility.
What is UEFI/BIOS setup utility
UEFI/BIOS is the first program that runs when a computer starts. UEFI/BIOS initializes hardware components and loads the operating system and other programs. Your computer may include a setup program (setup utility) with which you can change certain UEFI/BIOS settings.
Open the UEFI/BIOS setup utility
For computers with hotkey mode enabled, press Fn + F2.
Select boot devices
Normally, the computer starts to a boot manager loaded from the secondary storage device of the computer. Occasionally, you may need to start the computer to a program or boot manager loaded from another device or a network location. After the system firmware initializes all devices, you can press an interruption key to display the boot menu and select a desired boot device.
You can make a permanent change on boot devices in the UEFI/BIOS setup utility. Select the Boot menu; in the EFI section, select the desired boot device and move it to the top of the device list. Save changes and exit the setup utility for the change to take effect.
Change hotkey mode
Enable or disable always-on
For some Lenovo computers with always-on connectors, the always-on function can be enabled or disabled in the UEFI/BIOS setup utility.
Enable or disable Flip to Start
When Flip to Start is enabled, you can turn on the computer by flipping open the screen.
You may also set Flip to Start in Lenovo Vantage or Lenovo PC Manager.
Set passwords in UEFI/BIOS setup utility
This section introduces the types of passwords that you can set in the UEFI (Unified Extensible Firmware Interface) or BIOS (Basic Input/Output System) setup utility.
Password types
You can set various types of passwords in the UEFI/BIOS setup utility.
Password type | Pre-requisite | Usage |
---|---|---|
Administrator password | No | You must enter it to start the setup utility. |
User password | The administrator password must be set. | You can use the user password to start the setup utility. |
Master hard disk password | No | You must enter it to start the operating system. |
User hard disk password | The master hard disk password must be set. | You can use the user hard disk password to start the operating system. |
- All passwords set in the setup utility consist of alphanumeric characters only.
- If you start the setup utility using the user password, you can only change a few settings.
Set administrator password
You set the administrator password to prevent unauthorized access to the UEFI/BIOS setup utility.
Next time you start the computer, you must enter the administrator password to open the setup utility. If Power on Password is enabled, you must enter the administrator password or the user password to start the computer.
Back to topChange or remove administrator password
Only the administrator can change or remove the administrator password.
Note: If you want to remove the password, press Enter in both text boxes without entering any character.
If you remove the administrator password, the user password is also removed.
Back to topSet user password
You must set the administrator password before you can set the user password.
The administrator of the setup utility might need to set a user password for use by others.
Enable power-on password
If the administrator password has been set, you can enable power-on password to enforce greater security.
Note: The administrator password must be set in advance.
If power-on password is enabled, a prompt appears on the screen every time you turn on the computer. You must enter the administrator or user password to start the computer.
Back to topSet hard disk password
You can set a hard disk password in the setup utility to prevent unauthorized access to your data.
Note: If you start the setup utility using the user password, you cannot set hard disk password.
Note: The master and user hard disk passwords must be set at the same time.
If the hard disk password is set, you must provide the correct password to start the operating system.
Back to topChange or remove hard disk password
To change or remove master password, select Change Master Password and press Enter.
Note: If you remove the master hard disk password, the user hard disk password is also removed.
To change user password, select Change User Password and press Enter.
Note: The user hard disk password cannot be removed separately.