You should be able to get it by hitting the Prt Scr (Print Screen) button on your keyboard. On mine it is the left most of the three buttons just past the Function keys.
Once you do that, you'll have to open Word and paste (Ctrl + V) the picture into a new document. Not sure what you want to do with the pic, so there may be a better program to put it in than word, but that will capture the screen.