Lenovo X121E Laptop User Manual


 
Table 4. Security menu items (continued)
Menu item
Submenu item Selection Comments
Memory Protection Execution Prevention Disabled
Enabled
Some computer viruses
and worms cause memory
buffers to overow 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
nd that an application
program does not run
correctly, select “Disabled”
and reset the setting.
Intel Virtualization
Technology
AMD-V Technology
Disabled
Enabled
If you select “Enabled,”
a VMM (Virtual Machine
Monitor) can utilize the
additional hardware
capabilities provided by
Virtualization Technology.
Virtualization
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.
Note: This sub-menu is not
supported in AMD models.
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.
USB Port
Disabled
Enabled
If you select “Enabled,” you
can use the USB port.
Memory Card Slot
Disabled
Enabled
If you select “Enabled,”
you can use the Memory
Card slot (SD Card or
MultiMediaCard).
I/O Port Access
Chapter 8. Advanced conguration 119