When you are editing in your Windows Movie Maker Timeline find the image you want to capture. You have to be exact about this and make sure that the play bar is on the exact frame that you want to extract. You figure this by having it stopped on a specific point in the Timeline sequence according to the image in the preview window. Once you have found the perfect moment as determined by the display in the preview window. Go to Tools in the upper task bar and select ‘Take Picture From Preview’ from the pull down menu. This will then open up a Save Picture As window where you select a name and location to save the picture. The picture will then be saved as a JPG, JPEG, or JPE.