I have been using Movie Maker for over a year now to edit my videos for my YouTube channel, but now I cannot continue because the audio within the application has ceased to work. It has been like this for a couple of weeks. I have checked the sound mixer, and even tried to troubleshoot it, but all appears to be fine. I have even checked my speakers, and even they seem to function as per normal. 

I am am currently running Windows 10 Home, if that is of any help when it comes to answering the question. I would appreciate an answer ASAP, as my subscribers are becoming impatient and I have a lot of videos pending. 

Kind regards,

Ramal Wickramasinghe