Ok,so,i have a problem,Movie Maker is not working.Why? I don.t know,but i can describe my problem.

Every single time when i try to upload a video for editing purpose it shows me this

and i don.t know how to fix it,only the sound works but the video not.I said ok maybe some trouble issues,i tried ti export it,same thing Black screen.Please help me,i would be so thankfull.