>> You are wrong. Windows lets me update pip via pip.
>
>You have misinterpreted what you are seeing.

I don't know technical details but i can successfully use this command: `pip install --upgrade pip`.

>No, you should follow the correct process and use `python -m pip`, and not use pip directly.

On pip's issues tracker i was suggested to use `ensurepip --upgrade`. Therefore it deletes global system's pip when is ran without sudo or admin rights (when the current version of pip is lower then bundled).