‘Jupyter’ is not recognized as an internal or external command

Yes, This is the problem which I faced also during the installation of Jupyter Notebook.
But I know the solution of this. I hope, it also works for you as well.

1. Open cmd.
2. Type: pip install notebook.
3. If you Type: **jupyter notebook** – it always shows an error.
4. So, Type: python -m notebook.

Image shows running Jupyter Notebook

If you feel that this answer is useful and works for you, I expected. So, please press the Up Button for other peoples. So that they can also get some help.