There are 3 AC2 programs in exception list:
Assassin's Creed II
Assassin's Creed II Update
Assassin's Creed II Uplay
After pausing downloads on utorrent and steam:
Another thing I found just now that the application which finds the update(Autopatch) stores the update info in a temporary file, and this file always has a new filename
UPDATE:
A new window came in now after updating 2 more times:
But nothing else is happening
I updated the game once more, and allowed it to patch for about half an hour and now I can play the game. Thanks, and Sorry for wasting your time!