First open itunes and go to file - Add files to library Then browse to your iphone name (Which is shown as camera in windows Explorer). All the photos and videos will be shown. Select the video you want to copy and Add. This will copy the video to pc. Then just go to the Library - Movies and see the video there - right click the video and select "show in windows explorer" and copy the video anywhere you want. Delete the video from itunes if you wish.