Answer 1

This one should do the trick:
https://www.python.org/ftp/python/3.6.4/python-3.6.4-amd64.exe

In general, you can find all download versions of the latest build at:
https://www.python.org/downloads/release/python-364/

or choose a specific software and OS version you want at:
https://www.python.org/downloads/