Computer Problems

Last night Cláudia went to use the computer while I was making 2 apple tarts and lemon meringue pies, she came back and said that there was a problem with the computer. I went and had a look and when I turned it on everything appeared to be normal when suddendly a blue screen with lots of writing appeared for a fraction of a second and then the computer rebooted. I did this a few times with the same result, eventually I went and got my camera and after 3 tries managed to take a photo of the screen which it turned out had information on the problem and how to fix it. How I would ever have found out what to do if I hadn´t been able to take a photo I don´t know.