Lenovo ThinkPad S540 User Manual page 110

Table 5. Security menu items (continued)
Menu item
UEFI BIOS Update Option
Memory Protection
Virtualization
I/O Port Access
94
User Guide
Submenu item
Physical Presence for
Clear
Flash BIOS Updating by
End-Users
Secure RollBack
Prevention
Execution Prevention
Intel (R) Virtualization
Technology
Intel VT-d Feature
Ethernet LAN
Wireless LAN
Wireless WAN
Bluetooth
USB Port
Memory Card Slot
Integrated Camera
Selection Comments
• Disabled This option enables or disables the
confirmation message when you
• Enabled
clear the security chip.
• Disabled If you select Enabled, all users can
update the UEFI BIOS. If you select
• Enabled
Disabled, only the person who
knows the supervisor password can
update the UEFI BIOS.
• Disabled (If OS If you select Disabled, you can flash
Optimized is the older version of the UEFI BIOS.
Disabled)
• Enabled (If OS
Optimized is
Enabled)
• Disabled Some computer viruses and worms
cause memory buffers to overflow.
• Enabled
By selecting Enabled you can
protect your computer against
attacks by such viruses and worms.
If you find that an application
program does not run correctly after
choosing Enabled, select Disabled
and reset the setting.
• Disabled If you select Enabled, a Virtual
Machine Monitor (VMM) can utilize
• Enabled
the additional hardware capabilities
provided by Virtualization
Technology.
• Disabled
Intel VT-d stands for Intel
Virtualization Technology for
• Enabled
directed I/O. When enabled, a VMM
can utilize the platform infrastructure
for I/O virtualization.
• Disabled If you select Enabled, you can use
the Ethernet LAN device.
• Enabled
• Disabled If you select Enabled, you can use
the Wireless LAN device.
• Enabled
• Disabled If you select Enabled, you can use
the Wireless WAN device.
• Enabled
• Disabled If you select Enabled, you can use
the Bluetooth device.
• Enabled
• Disabled If you select Enabled, you can use
the USB connectors.
• Enabled
• Disabled If you select Enabled, you can use
the memory card slot for an SD card
• Enabled
or a MultiMediaCard.
• Disabled If you select Enabled, you can use
the camera.
• Enabled