I didn't realise "Extended Download Protection" still existed...
What you downloaded McAfee, to install on your machine - what was the name of the file you downloaded?
Normally, once you install McAfeee, and register with your e-mail address and a password of you choosing, an account is created for you on the McAfee website. Normally you should be able to download/install from your My Account for the whole duration of your subscription.
https://home.mcafee.com/Secure/Protected/Login.aspx?ErrCode=PLEASE_LOGIN *but* we're all Tech Support guys here... If you want to be sure about anything regarding subscriptions and stuff, we do strongly advise to doublecheck with McAfee Customer Service.