I am unable to render videos as an mp4.
I have followed the steps on the https://kdenlive.org/download/ site, but there is still an 'x' next to mp4 saying 'Unsupported video codec: libx264'.
I have tried deleting the entirety of kdenlive off of my computer and redownloading it, but this time, the kdenlive-17.0.4.3-w64 folder didn't generate in the root of the kdenlive-17.0.4.3 folder. I have to put the ffmpeg and presets there.

I am using Windows 10

How can I resolve this?

Thanks.