Install python from Python.org, Check the checkbox to add python to PATH.
Open powershell or terminal and type python --version to verify that python is installed.
Create a virtual envoriment with python -m venv venv and activate it with venv\Scripts\activate
If an Execution Policy is set, run the following command: Set-ExecutionPolicy -Scope CurrentUser -ExecutionPolicy RemoteSigned
Try the pervious command again
Install Jupyter with the command pip install jupyter.
Run jupyter-lab
Just activate the virtual env (step 2)