I just don't understand you Microsoft.
Why would you mark this Nagware as an Important Update?
Years of trust in Windows Update is now in jeapordy. I am configuring my computers to use MANUAL updates from now on, since Microsoft seemingly can no longer be trusted.
I was cautiously optimistic for W10 but since you tried to force it on me with adware, I will NOT install it on my home computer. I will NOT install it on my work computer. And I certainly will NOT be installing it on the workstations under my control. Neither will I install it on new machines that I build for clients. I certainly won't recommend it to anyone that asks me, and in fact will go out of my way to warn people off it.
I am not alone, either. Lots of admins are infuriated at your recent actions, and feel the same way. If you don't win over the admins, W10 will not be installed on workstations, end users will not acclimatize to it and consequently will not want it on their home machines.
Mark my words, W10 will now flop, and a large part of the blame lies with KB3035583.