Lenovo ThinkPad X1 User Manual page 63

UEFI BIOS Update Option
• Flash BIOS Updating by End-Users
Values: On, Off
Description: 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: On, Off
Description: When this option is disabled, you can flash the UEFI BIOS to earlier version.
• Windows UEFI Firmware Update
Values: On, Off
Description: Enable or disable the Windows UEFI Firmware Update feature. Select On to allow Windows
UEFI Firmware Update. If you select Off, BIOS will skip Windows UEFI Firmware Update.
Memory Protection
• Execution Prevention
Values: On, Off
Description: 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: On, Off
Description: 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: On, Off
Description: 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
Description: Use this submenu to enable or disable the following hardware features:
• Wireless LAN
• Wireless WAN
• Bluetooth
• USB Port
• Memory Card Slot
• Integrated Camera
• Microphone
• Fingerprint Reader
• Thunderbolt(TM) 3
• NFC Device
.
Chapter 5 Advanced configuration
49