pip download and install

pip download address:
https://pypi.org/search/?q=pip

Step 2:

Step 3: Step

4:

Unzip after downloading, enter the console command with cmd, enter the folder where setup.py is located,
cd C:\MyPythonPip\pip-10.0.1 and
enter the following command:

python setup.py install

Then wait for the installation to complete.

Also refer to:
pip installation under Win10