Well don't you worry, i hadn't any chipset installed, double checked this when i did the first windows update.
I'm afraid that you edited your post after that I installed the chipset drivers :/
But now i got this, and no more "yellow" devices appears in the device manager window.
I mean I...
I gave up and reinstalled Windows, now all is working perfectly, i tried to rebuild the BCD without luck, spent like two days trying to fix that.
And yes I had installed the good chipset before mounting the new CPU, followed all your "tutorial".
Now, is that needed to install MEI/VMD/IO and so on ?
Thank you, happily i found this cause today i tried to switch from 12 to 13, ended up with this "inaccessible boot device".
Spent all this afternoon for nothing !
Tomorrow will be better, hope so :D