Can not watch Mp4 after installation

Hi, I have installed your latest version, 14.5.5
And I use windows 8.1
The installation was successfull, and I see the "Codec Tweak Tool" in my desktop.
Still, I can not wach the .mp4 files on my computer.
Anyboady can help?
Regards

Which player are you using and what error do you get?

I use windows media player.
And I get this error, please, look at the picture attached.

And i have version 12 of media player

Try this:
Codec Tweak Tool > Media Foundation > disable .mp4 (32-bit column)

If that does not solve it, then maybe something is wrong with those files. Right-click on a file and choose MediaInfo. Copy the details it gives here.

I did as you said and here is what I see:

That is correct. Do those files still not play?