Jupyter Notebook- Download NoteBook as PDF

I am trying to download a notebook as a pdf, using the "Download As" - PDF via LaTex - and I am getting a :

"500 Internal Server Error"

nbconvert failed: xelatex not found on PATH, if you have not installed xelatex you may need to do so. Find further instructions at https://nbconvert.readthedocs.io/en/latest/install.html#installing-tex.

I am using windows, I downloaded MikeTex per read the docs. Any idea on how to fix this. ?