Just not understanding this! I had just recorded a video, put it in a project, nothing special but all of a sudden Movie Maker froze up on me, and when it came back, the video I inserted had an exclamation mark over it claiming the file was corrupted or could not be supported.

Why is it just now saying that after I already had it in the video? It wont let me re-add the video  from where I saved it from, and it denies to open any .avi file at all! Restarting computer didn't help, trying to convert the project just gives me a prompt that it'll be converted without my inserted video. Deleting WLMM from the program files and restarting it had no effect either! Even trying to download a third party software to try to convert the video for me but none of them seem to support wlmp :\

Ive done this same process before, with no trouble and I was able to to upload my video where I need it. But I am in a pit here, all i get is error error error and I dont know any means to fix it!