•
Physical Presence for Clear
Values: Disabled,
Enabled
Descriptions: If this option is enabled, a confirmation message is displayed when you clear the security
chip.
UEFI BIOS Update Option
•
Flash BIOS Updating by End-Users
Values: Disabled,
Enabled
Descriptions: When this option is enabled, all users can update the UEFI BIOS. If you disable this option,
only the person who knows the supervisor password can update the UEFI BIOS.
•
Secure RollBack Prevention
Values: Disabled, Enabled
Descriptions: When this option is disabled, you can flash the UEFI BIOS to earlier version.
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
.
•
Windows UEFI Firmware Update
Values: Disabled,
Enabled
Descriptions: Enable or disable the Windows UEFI Firmware Update feature. If you select Disabled, BIOS
will skip Windows UEFI Firmware Update and you can flash the UEFI BIOS to an earlier version.
Memory Protection
•
Execution Prevention
Values: Disabled,
Enabled
Descriptions: Some computer viruses and worms cause memory buffers to overflow. By enabling this
option, you can protect your computer against attacks from such viruses and worms. If the option is
enabled but you find that a program does not run properly, disable this option first and then reset the
settings.
Virtualization
•
Intel(R) Virtualization Technology
Values:
Disabled
, Enabled
Descriptions: If this option is enabled, a Virtual Machine Monitor (VMM) can utilize the additional hardware
capabilities provided by Intel Virtualization Technology. This setting should be set to
Disabled
to prevent
security risks if operating system does not support a VMM.
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
.
•
Intel(R) VT-d Feature
Values:
Disabled
, Enabled
Descriptions: 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. This setting should be set to
Disabled
to
prevent security risks if operating system does not support a VMM.
Chapter 6
.
Advanced configuration
59
Summary of Contents for Yoga 11e 5th Gen
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