Lenovo ThinkPad X1 User Manual page 129

Table 5. Security menu items (continued)
Submenu item
®
Intel TXT Feature
UEFI BIOS Update Option
Flash BIOS Updating by End-Users
Flash Over LAN
Memory Protection
Execution Prevention
Virtualization
®
Intel Virtualization Technology
®
Intel VT-d Feature
I/O Port Access
Ethernet LAN
Wireless LAN
WiMAX
Wireless WAN
Bluetooth
Selection
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
Comments
Enable or disable Intel Trusted
Execution Technology.
If you select "Enabled," all users
can update the UEFI BIOS. If you
select "Disabled," only the person
who knows supervisor password can
update the UEFI BIOS.
Enable your computer's UEFI BIOS to
be updated (flashed) over an active
network connection.
Some computer viruses and worms
cause memory buffers to overflow
by running code where only data
is allowed. If the Data Execution
Prevention feature can be used
with your operating system, then by
selecting "Enabled" you can protect
your computer against attacks by
such viruses and worms. If after
choosing "Enabled" you find that an
application program does not run
correctly, select "Disabled" and reset
the setting.
If you select "Enabled," a VMM
(Virtual Machine Monitor) can utilize
the additional hardware capabilities
provided by Intel Virtualization
Technology.
Intel VT-d is Intel Virtualization
Technology for Directed I/O. When
enabled, a VMM can utilize the
platform infrastructure for I/O
virtualization.
If you select "Enabled," you can use
the Ethernet LAN device.
If you select "Enabled," you can use
the Wireless LAN device.
If you select "Enabled," you can use
the WiMAX device.
If you select "Enabled," you can use
the Wireless WAN device.
If you select "Enabled," you can use
the Bluetooth device.
.
Chapter 8 Advanced configuration
113