Firewall Rules Ts2009

For some reason out of the blue Windows update keeps notifying me of an update.


After running the update I'm alerted to another available update. The problem is that it's the same update & even though I'm told that it installed successfully I keep getting alerted over & over again.


Is this due to Bitdefender, or could it be something to do with me deleting the wrong registry key when trying to clean out old ones?