Table 3. Security menu items (continued)
Menu item
Submenu item
Selection
Comments
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 the supervisor
password can update the
UEFI BIOS.
UEFI BIOS Update Option
Secure RollBack Prevention
•
Disabled
• Enabled
If you select
Disabled
, you
can flash the older version
UEFI BIOS.
Memory
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 a program does not run
correctly, select
Disabled
and reset the setting.
Intel Virtualization
Technology
•
Disabled
• Enabled
If you select
Enabled
, a
Virtual Machine Monitor
(VMM) 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.
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 wireless LAN
devices.
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 Bluetooth devices.
USB Port
• Disabled
•
Enabled
If you select
Enabled
, you
can use USB connectors.
I/O Port Access
77
Summary of Contents for ThinkPad L450
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