No, sorry, I don't have Win10 anymore as I upgraded to Win7.
I did the same thing on my laptop after Windows 10 developed an unrecoverable blue screen (after having using it with Windows 10 for almost a year). I much later figured out what the problem was and know what to do now, but haven't gone back. That being said, my two desktop machines are on Windows 10.
I agree...if it works with YouTube, but not locally, then it is a Codec issue.