Start by setting up an EduDentity.
https://www.mydesire2learn.com/d2l/ed/cns/ca/serviceAgreement.
Fill out the Service Agreement and click Accept.
Type in your Name, Email, and desired Password.
Make a Security Question and Answer.
Select Create Account.
After you see this, login to your email in a separate browser tab.
In the email, click the link to activate your account.
Your account is now active.