ThinkPad Yoga14, User Manual

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Table 5. 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
to an earlier version of the UEFI
BIOS.
If you select Enabled , you cannot
flash to an earlier version of the UEFI
BIOS.
Note: This item is set as Disabled
by default when the OS Optimized
Defaults on the Restart menu is
set as Disabled . This item is set
as Enabled by default when the
OS Optimized Defaults is set as
Enabled .
Memory Protection Execution Prevention • Disabled
• Enabled
Some computer viruses and worms
cause memory buffers to overflow.
By selecting
Enabled you can
protect your computer against
attacks by such viruses and worms.
If you find that an application
program does not run correctly after
choosing
Enabled , select Disabled
and reset the setting.
Intel(R) 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(R) VT-d Feature • Disabled
• Enabled
Intel VT-d stands for Intel
Virtualization Technology for
directed I/O. When enabled, a VMM
can utilize the platform infrastructure
for I/O virtualization.
Note: This item is available when
the processor of your computer
supports this feature.
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User Guide