Over the past 3 or 4 days, my laptop has "mysteriously" shut down on me out of the blue. Early this morning, I received a message that my laptop shut down by itself to protect my files. The message also said that there had been a change in my computer's configuration, which is why the computer shut down. Is there anything that I can do myself to find out what is wrong with my laptop? I don't want to take it to a computer specialist unless I absolutely have to.