Software & Apps MS Office Video Disappears From Windows Movie Maker Project Yellow triangle with exclamation mark appears instead of video clip by Wendy Russell Writer Former Lifewire writer Wendy Russell is an experienced teacher specializing in live communications, graphics design, and PowerPoint software. our editorial process Wendy Russell Updated on August 11, 2019 Tetra Images / Getty Images MS Office Powerpoint Word Excel Outlook Tweet Share Email You need to be aware that pictures, music or videos inserted into Windows Movie Maker are not embedded into the project. They are simply linked to the project from their current location. Therefore, if you make a change to any of these variables, the program cannot find these files. Video Disappears From Windows Movie Maker Project Here are some possible reasons for the problem. You were working on a different computer on the first day. When you copied over the project file to another computer, you neglected to copy over all the additional video files that you had inserted in your movie timeline.Perhaps you did, indeed, copy over all the video files to a second computer. However, if you did not place them into an identical folder structure as on the first computer, Windows Movie Maker does not know where to find them. This program is very finicky and does not like change.Perhaps you were using your video files from a USB flash drive and had not inserted the flash drive back into the computer.The video files were on a network drive rather than the local hard drive, and now you are not attached to the same network. Once again, Windows Movie Maker cannot find the necessary video files. Show Windows Movie Maker Where You Have Moved the Video Files If you have, in fact, moved the video files (or photos or audio files) to a different location on your computer, you can let Windows Movie Maker know where the new location is and it will then show the files in your project. Open your Windows Movie Maker project file. Notice that there are yellow triangles with black exclamation marks in your project where there should be video clips. Double click on a yellow triangle. Windows will prompt you to browse for the file location. Navigate to the new location of the video files and click on the correct video clip for this instance. The video clip should appear in the timeline (or storyboard, depending on the view showing). On many occasions, all the video clips will also magically appear because the new location also contains the remainder of the video clips you used in the project as well. Continue editing your movie. Windows Movie Maker Best Practices Create a new folder that will contain not only your Windows Movie Maker project but also any photos, music files, and videos that will be part of your end product.Copy all of the files that will be part of this project into this folder.To move the project to another computer, you simply have to copy the complete folder, and you can then continue editing your movie from a different computer.