windows updates not recognising the update on Avast!

a week or so ago i had my avast pop up saying it expired! That was fine and i registered it and got a new key for it! Its all updated now but my windows updates is not recognising that! its saying that my antivirus is out of date! how do i change that?

See the tutorial to insert the new key: http://www.avast.com/files/tutorials/insert_key.htm
Sometimes, Windows Security Center stops recognizing your antivirus or firewall… So, check your system time and date and also http://forum.avast.com/index.php?topic=23457.msg193534#msg193534