SIMPLE
On your keyboard there should be a key marked "Print Screen" and all you have to do is bring whatever you want to copy up on the screen and hit that key. It may be on a key that has two choices, like mine has Print Screen upper and SysRq on the bottom of the same key. I have to hit "Shift" and "Print Screen" and the computer copies whatever is on the screen and saves it to the "Clipboard".
Then bring up Word or Paint. In Word right click, then hit "Paste" and the screen that was copied will show up in the new program. In Paint, go to "Edit" then "Paste" and bingo, the copy will show up. Then you can edit it in Paint and save it where you want it to be.
Really Simple!