I’m having the same issue as this guy:
Which is, when I run jupyter notebook, I get ERR_FILE_NOT_FOUND in my browser.
It works with the URL but not with the file, because it doesn’t exist.
I noticed Jupyter is supposed to create a new HTML file in %AppData% with a new randomized number every time the local server starts, but that’s just not happening.
I just installed it and this is rather inconvenient.