You must create a LiveID and use that LiveID to create a subscription. And, note also that you can only Activate OneCare (subscribe) if you are located in a country where it is available for sale -
In which countries and languages is Windows Live OneCare available?
The Windows Live OneCare subscription service is available in the following countries and languages: Australia (English), Austria (German), Belgium (Dutch, French), Canada (English, French), France (French), Germany (German), Ireland (English), Italy (Italian), Japan (Japanese), Mexico (Spanish), Netherlands (Dutch), New Zealand (English), Singapore (English), Spain (Spanish), Switzerland (French, German), United Kingdom (English), United States (English, Spanish).
Pasted from <http://onecare.live.com/standard/en-us/faq.htm>
To create a LiveID, simply go to http://account.live.com in your web browser. If it reports that the user name is unavailable, that will never change. It is unavailable, a new one must be selected. You can also create a LiveID that is your email address from your Internet provider.
If your customer is in a country where OneCare is sold, what is the specific error being encountered when creating the liveID?
-steve
