Lenovo 114155U Laptop User Manual


 
Security menu items
Table 5. Security menu items
Menu item
Submenu item Selection Comments
Password
Refer to “Security menu”
on page 114 and “Using
passwords” on page 59.
UEFI Update Option
Flash UEFI Updating by
End-Users
Disabled
Enabled
If you select “Enabled”,
all users can update the
Flash UEFI. If you select
“Disabled”, only the person
who knows supervisor
password can update the
Flash UEFI.
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
Disabled
Enabled
If you select “Enabled,”
a VMM (Virtual Machine
Monitor) 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.
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.
I/O Port Access
120 User Guide