Just like last month, Microsoft released an update to help Windows Update work better, and just like last month, it only shows up After the other updates are installed. I had problems with my win7 VM, so restored the VM & started over -- downloading & installing kb4536952 first make a BIG difference... the 1st time it took forever to restart applying the updates.
The problem I had, which I don't think will effect many people [I just mention it in case], was that I had the Security Essentials pre-release installed. It locked things up, even after uninstalling that version & reinstalling the regular Security Essentials app. I restored the VM & started over, applying kb4536952 as above, uninstalling the Security Essentials pre-release, then installing Windows Updates. Only when that was all done did I install Security Essentials, & everything so far seems OK.