I am trying eliminate sections out my 20 minute source video. The instructions I have seen here say split the video at the appropriate points and then delete the unwanted section(s).  How do I delete the unwanted section?  How do I then reconnect the two sections that preceded and followed the section that I have deleted. 

Somebody should write a book on this. I bought a book from Amazon on "Movie Maker 2" and it is no help at all for  MovieMaker 2012.