I've been saying for some time now that quality control and the delivery mechanism in Microsoft Update are both stuffed.
I've been saying the same thing for at least 15 years. Maybe even over 20. It was readily apparent with all the heap, stack and buffer overrun problems way back when. They were much too interested in adding supposed features instead of fixing the bugs as should have been done. It is one of the reasons why I left the support industry. Like the old "Where is the ANY key?" question that one can only answer so many times before exploding, one can only fix the same systems from the same bugs only so many times. $$$ be damned.