Microsoft, the second: After Office Home and Student 2010 is now running smoothly in January on the first computer, the license has suddenly "turned off" and all applications are closed. Mind you: The computer is not on the Internet, so it can have neither a faulty update nor any other outside interference acted. So everything again enter from the front, product key, call the nice lady at the Microsoft Support and then activate by endless sequences of digits the product again. Has funtkioniert, let's see how long. Even weaker picture!