Download Python 3.7.4 from “https://www.python.org/downloads/release/python-374/” url
Choose and select “x86–64 executable installer” for Windows 10–64 bit computer
Select location to save the executable file.
Go that specific location and run that executable file.
Enable Add Python 3.7 to PATH
Enable add Python 3.7 to PATH and click on Install Now
Setup Progress Window
Setup Successful Window
Check the installation by running IDLE