Hi AmeliaRennison,
Thank you for posting your concern here and we sincerely apologize for not being able to answer your concern in a timely manner. We would like to verify if you are still encountering the issue.
If yes, there are reasons why you encountered it and what we need to do is to isolate them. We would like you to check and ensure that these factors don't contribute to the issue:
Outdated version of Movie Maker
Ensure that you have the latest the version of your Windows Movie Maker.
Unsupported file types
Check that the file types you are using are supported.
A list of supported formats can be found
here.
Bad Codecs
Ensure that you have the proper codecs to play your videos and audio files.
Audio and video require codecs to play the file and it’s important to have the right codecs installed or updated in your PC.
- You may try fixing bad codecs by referring to this link:
Microsoft FixIt tool
- Media info will be able to identify any issues with missing or faulty codecs and whether it’s already installed in your computer or not. Get
here.
Note: If can't find the codec, you may convert the video to a supported format (eg. wmv) and then add it to your Windows Movie Maker project.
Let us know the results afterwards.
Regards.