New
#11
As airbot pointed out, MS goofed and exposed PBs that didn't belong on the fast or slow rings.
KB3035129 preceded the erroneous PBs 9931 / 9932 - it was the PBs not KB3035129 that was scwewy.
I'm late on this, but Neowin has a good write up:
Pb 9931 / 9932