Want to log onto your Windows Live account from a public computer but afraid it might be infected with malware that can steal your credentials and take over your account? Windows Live has a single-use code feature that lets you use this option instead of your password. It’s a good idea for added protection when you have to use a computer or network you don’t completely trust. Find out more about it here:
http://omar.shahine.com/safely-signing-in-on-a-computer-thats-not-you