O2Face has the function: 1. Auto On Users can automatically log on to Windows without requiring any interaction with a keyboard or mouse. The user only needs to verify their face via web-cam to log on. 2. Fast User Switching When a web-cam detects a user face, O2Face will logon the user to his or her respective account. It will also prompt the user to update configurations. Users can also configure how often the web-cam checks their identity (Every 10 seconds, 20 seconds, etc). 3. LiveDetect This is an advanced security feature that checks whether an actual person is in front of the web-cam. It can prevent people to cheating the system by using a photo. If enabled, only a real person can log on or unlock Windows. 4. LeaveDetect This security feature assists the user automatically lock the computer after they have left the computing area, which can prevent other people from accessing or stealing information. Users can configure when the computer will lock after the user leaves. 5. Single Sign On(SSO) Single Sign On provides automatic web authentications, as well as automatic login for computer applications. It helps users auto-fill their credentials on web forms in web browsers. 6. Power Save When power is supplied by a battery, O2Face stops the camera after 10 sec. 7. Scenario Management In different computing environments, such as light differences, this function creates different scenarios to accommodate for the differences. O2Face will ask users to update their Face Key after logon. 8. Multi-angle Recognition O2Face not only supports level face recognition, but also from 90, 180, and 270 angles. Moreover, face recognition accuracy is not affected even with a 20 angle deviation. 9. Multi-user Support O2Face supports multiple users on one computer system. 10. Security Level Users can adjust security level settings to balance safety and convenience preferences. For example, a user can adjust how strict the program judges facial patterns.