3) Install Home Assistant

Install Home Assistant

Now we use Python to install Home Assistant. Click your Windows button so the Start Menu opens and type the following letters: cmd
It will find a programme called "Command Prompt" with a black icon like this: 

Click the icon to load the black command window.
Type in the following and press return:
pip3 install homeassistant
This will download and install Home Assistant. Once completed, type the following:
py -m homeassistant --open-ui
Once done you can close the black command window. If it has worked, it will have opened your web browser and you can see Home Assistant.

For this part, you need to know your longitude & latitude which you can get here. You will also need your elevation, which can be found here. Finally, you need your timezone, which can be found here.
Now, on your PC you need to navigate to this folder:
c:\users\NAME\AppData\Roaming\.homeassistant\
Replace "NAME" with your login name.
Right click on configuration.yaml and open it with Notepad.

Select all the text and replace it with the following, but make the changes outlined after it.

homeassistant:
  name: Home
  latitude: 53.123456
  longitude: -1.123456
  unit_system: metric
  time_zone: Europe/London
  elevation: 302
discovery:
history:
logbook:
updater:
sun:
frontend:
conversation:
http:
 api_password: ABC123
media_player:
tts:

  - platform: google

Make the following changes:
longitude, latitude, unit_system (imperial or metric), time_zone, elevation & api_password
You must set an API Password as your system will be accessed from the internet.