Thanks for trying that. They didn't do anything for me either but I saw them recommended in a blog. You should revert back to the previous config files.Looking in the MP log file there are various lines claiming that the Music, Picture, and Video databases have been created, but later on in the log the error that we had before occurs.
I am a loss as to how to resolve this. Three of my machines were set-up from scratch with only MP installed with Windows 10 Pro and I have never had any issues with the installation of the refactored version using exactly the same BAT file you are using. The same goes for my 32 bit Windows 7 machine. As I say, I have used EF with SQLite all over the place and thought I had a reliable configuration.
I'll let you know if I come across an answer/solution.