Computer mal-function

I hate it when the computer mysteriously and unwarningly restart itself! Being the forgetful person I am, I probably had about 10 documents opened on my taskbar. And now, I've forgotten the sites to the stuff that I was looking at. Good thing microsoft word can recover some documents but I have no idea what sites I had open. And I really don't want to sift through my history because there's sooooo many useless sites there....ahhhhh...