Lenovo Ideapad G555 0873-74U 15.6-Inch Laptop (Black) OneKey Rescue System - With the touch of a button, you can restore the system and recover valuable data. It also recovers essential system files in the event of corruption, and can be used to initiate a virus scan before entering Windows. VeriFace Facial Recognition Software - A cool and fun way to login to the PC &#8211; VeriFace uses the integrated webcam to detect your face and authorize your Windows login. It can also be used as a password management system for other applications. The planet's best keyboards with Numeric Keypad - The same engineers that brought you the legendary keyboard design on ThinkPad notebooks bring you great tactile feel with an intelligent layout and performance on the G555 notebook. Designed as a versatile but affordable notebook, built with durability in mind from the makers of ThinkPad Lenovo Energy Management software - uses advanced energy-saving technology to maximize time between charges.