Lenovo IdeaPad U300e - Manual (Page 129)

Table 5. Security menu items (continued)
Submenu item Selection Comments
Intel ® TXT Feature • Disabled
• Enabled
Enable or disable Intel Trusted
Execution Technology.
UEFI BIOS Update Option
Flash BIOS Updating by End-Users • Disabled
• Enabled
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.
Flash Over LAN • Disabled
• Enabled
Enable your computer's UEFI BIOS to
be updated (flashed) over an active
network connection.
Memory Protection
Execution Prevention • Disabled
• Enabled
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.
Virtualization
Intel ® Virtualization Technology • Disabled
• Enabled
If you select “Enabled,” a VMM
(Virtual Machine Monitor) can utilize
the additional hardware capabilities
provided by Intel Virtualization
Technology.
Intel ® VT-d Feature • Disabled
• Enabled
Intel VT-d is Intel Virtualization
Technology for Directed I/O. When
enabled, a VMM can utilize the
platform infrastructure for I/O
virtualization.
I/O Port Access
Ethernet LAN • Disabled
• Enabled
If you select “Enabled,” you can use
the Ethernet LAN device.
Wireless LAN • Disabled
• Enabled
If you select “Enabled,” you can use
the Wireless LAN device.
WiMAX • Disabled
• Enabled
If you select “Enabled,” you can use
the WiMAX device.
Wireless WAN • Disabled
• Enabled
If you select “Enabled,” you can use
the Wireless WAN device.
Bluetooth • Disabled
• Enabled
If you select “Enabled,” you can use
the Bluetooth device.
Chapter 8 . Advanced configuration 113