Lenovo ThinkPad T540p (English) User Guide - Page 134
Menu item, Selection, Comments, Memory Protection, Enabled, Disabled, Virtualization, I/O Port Access
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Table 5. Security menu items (continued) Menu item Submenu item Memory Protection Execution Prevention Selection • Disabled • Enabled Virtualization I/O Port Access Intel Virtualization Technology • Disabled • Enabled Intel VT-d Feature • Disabled • Enabled Ethernet LAN Wireless LAN Wireless WAN Bluetooth USB Port Ultrabay (HDD/Optical) Memory Card Slot Smart Card Slot • Disabled • Enabled • Disabled • Enabled • Disabled • Enabled • Disabled • Enabled • Disabled • Enabled • Disabled • Enabled • Disabled • Enabled • Disabled • Enabled 118 User Guide Comments Some computer viruses and worms cause memory buffers to overflow by running code where only data is allowed. If the Data Execution Prevention feature can be used with your operating system, then by selecting 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. If you select Enabled, a Virtual Machine Monitor (VMM) can utilize the additional hardware capabilities provided by Virtualization Technology. Intel VT-d is Intel Virtualization Technology for Directed I/O. When enabled, a VMM can utilize the platform infrastructure for I/O virtualization. If you select Enabled, you can use the Ethernet LAN device. If you select Enabled, you can use wireless LAN devices. If you select Enabled, you can use wireless WAN devices. If you select Enabled, you can use Bluetooth devices. If you select Enabled, you can use USB connectors. If you select Enabled, you can use the Ultrabay device. If you select Enabled, you can use the memory card slots. If you select Enabled, you can use the smart card slots.