Security Menu - Lenovo ThinkPad S531 User Manual

Security menu

If you need to set the security features of your computer, select Security from the ThinkPad Setup menu.
Notes:
• Default values are in boldface. The default settings are already optimized for you. If you consider
changing the computer configuration, proceed with extreme caution. Setting the configuration incorrectly
might cause unexpected results.
• On each submenu, press Enter to show selectable options and select a desired option, or type desired
values from the keyboard directly.
• Some items are displayed on the menu only if the computer supports the corresponding features.
The following table lists the Security menu items.
Table 5. Security menu items
Menu item
Password
76
User Guide
Submenu item
Supervisor Password
Lock UEFI BIOS Settings
Password at unattended
boot
Password at restart
Set Minimum Length
Selection Comments
• Disabled
Refer to "Supervisor password" on
page 42.
• Enabled
• Disabled
Enable or disable the function that
protects items in the ThinkPad
• Enabled
Setup program from being changed
by unauthorized users. By default,
this is set to Disabled. If you set
the supervisor password and enable
this function, no one but you can
change the items in the ThinkPad
Setup program.
• Disabled If you select and enable Password
at unattended boot, a password
• Enabled
prompt is displayed when the
computer is turned on, from either
a power-off or hibernation state. If
you select Disabled, no password
prompt is displayed; the computer
goes ahead and loads the operating
system. To prevent unauthorized
access, you can set the user
authentication on the operating
system.
• Disabled If you select and enable Password
at restart, a password prompt is
• Enabled
displayed when you restart the
computer. If you select Disabled,
no password prompt is displayed;
the computer goes ahead and loads
the operating system. To prevent
unauthorized access, you can set
the user authentication on the
operating system.
• Disabled Specify a minimum length for
power-on password and hard disk
• x characters
passwords. If you set the supervisor
(4≤x≤12)
password and specify a minimum
length for passwords, no one but
you can change the length.