Open Jupyter directly in a folder I choose

Hello everyone,

I had my students install Anaconda on their windows computer.
In windows explorer, they find Jupyter and can open it; They can
then move through their folders to access the notebook of their choice: from then on
they open their notebook.
On my side, I can go to the folder I want and write jupyter notebook in
the path of the file explorer: from then on the jupyter kernel opens presenting me
all the contents of the file concerned.
I wish my students could do the same…
I had them modify the ‘path’ in the environment variables by adding:
But it didn’t work.
Does anyone know what more I could do?
Thank you for your help.