First create a folder and place the movie you want to add to the PowerPoint inside the folder. Note: If you want to be able to play this video on another computer, make sure the file type you are using is supported.
Save your PowerPoint to the same location of the movie.
To embed a compressed video clip in Microsoft PowerPoint, go to the Insert tab, click Movie-> Movie from File, and then navigate to the folder that contains the movie. Once you highlighted the movie you want, click the OK button.
To change the size of the video hover over one of the corners until a diagonal double-sided arrow appears, now click and drag the video to a desired size.
To change the location hover over one of the sides of the video until a four-arrow cross appears, then click and hold down the mouse while dragging to a desired location.
To view your PowerPoint video click the View Tab and click the Slide Show button.
NOTE: Not all computers have the same specifications; so make sure you are using a compressed file type that will work on the computer you will be presenting.