Sort of a problem in windows 10.....

I am not sure why I actually hit while playing. I a not a touch typist. But every so often the window for the game gets selected and will move. Sometimes its just a little and other times its lot. This can be very problematic if half the window is off my screen. Not sure how to send the last game i played to anyone to see since it was a bot game....unless somebody can walk me through what i need to send for them to see what i see.