Lenovo 20AA Laptop User Manual


 
Table 5. Security menu items (continued)
Menu item
Submenu item
Value
Comments
Physical Presence for
Clear
Disabled
Enabled
This option enables or disables the conrmation
message when you clear the security chip.
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 ash to the
previous version of UEFI BIOS. If you select
Enabled, you cannot ash to the previous version
of UEFI BIOS.
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 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 Intel 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.
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 Bluetooth
devices.
USB Port
Disabled
Enabled
If you select Enabled, you can use USB
connectors.
Ultrabay (HDD/Optical)
Disabled
Enabled
If you select Enabled, you can use Ultrabay
Enhanced devices.
eSATA Port
Disabled
Enabled
If you selectEnabled, you can usethe eSATAPort.
Memory Card Slot
Disabled
Enabled
If you select Enabled, you can use the memory
card slots.
Smart Card Slot
Disabled
Enabled
If you select Enabled, you can use the smart
card slot.
I/O Port Access
102 User Guide