Security Menu - Lenovo ThinkPad S540 User Manual

• System Time
To change the date and time, do the following:
1. Using the up and down arrow keys to select the item to change the date or time.
2. Press Tab, Shift+Tab, or Enter to select a field.
3. Type the date or time.
Notes: Another way to adjust the date and time is pressing the following keys:
• F5 or –: Change to a lower value.
• F6 or the combination of Shift and +: Change to a higher value.
4. Press F10 to save the changes and restart the system.

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
92
User Guide
Submenu item
Supervisor Password
Lock UEFI BIOS Settings
Password at unattended
boot
Selection Comments
• Disabled Refer to "Supervisor password" on
page 48.
• 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 will be displayed when
the computer is turned on, from
either a power-off or hibernation
state. If you select Disabled, no
password prompt will be displayed;
the computer goes ahead and loads
the operating system. To prevent
unauthorized access, you can set
the user authentication on the
operating system.