Leo, the Billing problems that Chuck referred to should be fixed, so may not apply in your case. Check your computer date and time to see if it is not a future date. Sign on with your subscription LiveID at
http://billing.microsoft.com and verify that your subscription is accurately shown. If the PC date is correct, but it still shows that you need to renew, please contact support -
How to reach support (FAQ) - http://forums.microsoft.com/WindowsOneCare/ShowPost.aspx?PostID=2421771&SiteID=2
-steve