To select an environment, use the Python: Select Interpreter command from the Command Palette ( ⇧⌘P (Windows, Linux Ctrl+Shift+P)). To work with Python in Jupyter Notebooks, you must activate an Anaconda environment in VS Code, or another Python environment in which you've installed the Jupyter package. View, inspect, and filter variables using the Variable Explorer and Data Viewer.Create, open, and save Jupyter Notebooks.This topic covers the native support available for Jupyter Notebooks and demonstrates how to: Visual Studio Code supports working with Jupyter Notebooks natively, and through Python code files. Jupyter (formerly IPython Notebook) is an open-source project that lets you easily combine Markdown text and executable Python source code on one canvas called a notebook. Configure IntelliSense for cross-compiling.For the short term you are fine re-running the commands because if the package is already installed by conda or pip it won't get reinstalled however, if the package gets a new release and you aren't specifying versions, you'll get the latest when that install command next runs and if there is an error or incompatibility, then you'll have caused yourself an issue you could have avoided. You may just want to comment them out so you remember.

You can delete the install commands out of the notebook after if you want. For the packages that conda cannot install, and only for those, use %pip install. For example, if you want to work with Pandas in a notebook, in that notebook run %conda install -c anaconda pandas, based on here and the magic install command. The easiest way to sort where to install them is to let Jupyter handle it. It is possible you could add the already installed ones to your path, but if you have room it is easiest to keep your Anaconda installed stuff where it is and separate from what you had. The easiest solution would be to reinstall them.

On installing packages that worked before installed Anaconda:

See here if you are interested in using Jupyter notebooks in VSCode. You wouldn't need the JupyterLab Desktop App in that case. Jupyter itself works with VScode to run Jupyter notebooks in VScode. Rest was built from discussion in comments: I don't know how old of a version of Windows works for it. There is a JupyterLab Desktop App, see here and here.

Install jupyter notebook on windows