Lenovo ThinkPad T550 User Manual page 101

Table 4. Security menu items (continued)
Menu item Submenu item
Physical Presence
for Provisioning
Physical Presence
for Clear
UEFI BIOS Update Flash BIOS Updating
Option by End-Users
Secure RollBack
Prevention
Memory Protection Execution
Prevention
Virtualization Intel Virtualization
Technology
Intel VT-d Feature
I/O Port Access Ethernet LAN
Wireless LAN
Wireless WAN
Bluetooth
USB Port
Memory Card Slot
Smart Card Slot
Value Comments
• This item is displayed only if you have
• This is set to disabled when Intel PTT is
• Disabled
This option enables or disables the confirmation
message when you change the settings of the
• Enabled
security chip.
• Disabled This option enables or disables the confirmation
message when you clear the security chip.
• Enabled
• Disabled If you select Enabled, all users can update the
UEFI BIOS. If you select Disabled, only the
• Enabled
person who knows the supervisor password can
update the UEFI BIOS.
• Disabled If you select Disabled, you can flash the older
version UEFI BIOS.
• Enabled
• Disabled Some computer viruses and worms cause
memory buffers to overflow. By selecting
• Enabled
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.
• Disabled If you select Enabled, a Virtual Machine Monitor
(VMM) can utilize the additional hardware
• Enabled
capabilities provided by Intel Virtualization
Technology.
• Disabled Intel VT-d stands for Intel Virtualization
Technology for Directed I/O. When enabled, a
• Enabled
VMM can utilize the platform infrastructure for
I/O virtualization.
• Disabled If you select Enabled, you can use the Ethernet
LAN device.
• Enabled
• Disabled If you select Enabled, you can use the
Wireless-LAN connection.
• Enabled
• Disabled If you select Enabled, you can use the
wireless-WAN device.
• Enabled
• Disabled If you select Enabled, you can use Bluetooth
devices.
• Enabled
• Disabled If you select Enabled, you can use the USB
connectors.
• Enabled
• Disabled If you select Enabled, you can use the memory
card slots.
• Enabled
• Disabled If you select Enabled, you can use the smart
card reader slot.
• Enabled
selected Active or Enabled for the Security
Chip option.
enabled.
.
Chapter 6 Advanced configuration
85