Here's the blunt reality. There's some update coming out today which indicates it's a replacement of one that came out earlier that helped a bit with the install. if the one coming out today doesn't help you are facing a repair install/inplace reinstall or a total rebuilt.
There's no easy fix here. I'll post up when the KB I'm watching goes live, but bottom line folks that are left still experiencing this issue, you need to cut your losses and not wait for Microsoft to fix this. In their minds we're rounding errors.
I'm sorry for being blunt, but I'm also facing reality that Microsoft responds to big customers and very loud squeaky wheels and we're not either one.