As you may have noticed from the terminal and browser screenshots, so far, we have been using Docker for Mac; let's look at the Microsoft Azure driver using Docker for Windows.
First of all, you will need a Microsoft Azure account; if you don't already have one, you can sign up at https://azure.microsoft.com/. Once you have your account, the only piece of information you need to get started is your subscription ID; you can find this in the billing section of the portal.
Once you have your subscription ID, you can authenticate Docker Machine with Azure, to do this enter the following command, making sure to replace the subscription ID with your own:
docker-machine.exe create --driver azure --azure-subscription-id xxxxxxx-85a6-4ab4-b5c4-c18b54e014 98 azuretest
You will receive an activation code to authorise Docker Machine; go to https://aka.ms/devicelogin/ and enter the code you have been given:
Clicking Continue will take you a page which then shows you the permissions...