For the others issues (if anyone is waiting), I am currently installing all Windows I have (7 enterprise, 10 pro, and Windows2012 server, might even try the 2016 beta), to see how each behaves.
The runtime broker in this cause is connected with the search function, that, and that only. But I've been trying for hours today to fix it, re-registering it,etc... to no avail. It's odd, can't for world see how it connects to existence of processor groups, but somehow, it does.
There is no newer bios for Asus boards also. It is strange, because the current one is from December, yet Asus has in marked as March '16 (when v4 came out), but it is the very same and I even tried overwritting it, it worked, but it indeed was the same.