Lenovo 20J8 User Manual page 89

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 an earlier version.
• Windows UEFI Firmware Update
Values: Disabled, Enabled
Descriptions: This option enables or disables the Windows UEFI Firmware Update feature. Select
Enabled to allow Windows UEFI Firmware Update. Select Disabled to skip the Windows UEFI Firmware
Update.
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.
• 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.
I/O Port Access
Descriptions: Use this submenu to enable or disable the following hardware features:
• Ethernet LAN
• Wireless LAN
• Wireless WAN
• Bluetooth
• USB Port
• Optical Device
• Memory Card Slot
• Smart Card Slot
• Integrated Camera
• Microphone
.
Chapter 6 Advanced configuration
71