when I go to associate this PC with a subscription (step 2, I bought the cd version) and conitnue online, I always get a prompt from internet explorer (which closes the window) and it asks me to send an error report.
How to reach support (FAQ) - http://forums.microsoft.com/WindowsOneCare/ShowPost.aspx?PostID=2421771&SiteID=2
Alternatively, have a look at the KB article referenced in this post for common installation issues -
http://forums.microsoft.com/WindowsOneCare/ShowPost.aspx?PostID=1588602&SiteID=2
-steve
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