Lenovo ThinkPad Edge L330 User Manual page 79

Table 5. Security menu items (continued)
Menu item
UEFI BIOS Update Option
Memory Protection
Virtualization
I/O Port Access
Submenu item
Flash BIOS Updating by
End-Users
Secure RollBack Prevention
Execution Prevention
Intel Virtualization
Technology
Intel VT-d Feature
Ethernet LAN
Wireless LAN
Wireless WAN
Selection
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
• Disabled
• Enabled
Chapter 6
Comments
If you select Enabled,
all users can update the
UEFI BIOS. If you select
Disabled, only the person
who knows the supervisor
password can update the
UEFI BIOS.
If you select Disabled,
end-user can flash the
older version UEFI BIOS.
If you select Enabled,
end-user cannot flash the
older version UEFI BIOS.
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
Virtual Machine Monitor
(VMM) can utilize the
additional hardware
capabilities provided by
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 Wireless WAN
device.
.
Advanced configuration
65