I recently Downloaded a mp4 file from my friend on skype and i tried to put it into Windows Movie Maker and it is working fine. I then try to split the video into two and then the video doesnt work anymore. My computer is running windows 10 and it has worked in the past but not now. It shows up saying 'fix item' and i click it and it says 'Do you want to remove this file from the project?'. Please help. I need a quick answer because this needs to be done in less than a week! (Today: 18/06/16. Done time: 22/06/16.)