New
#11
Just a thought.. presumably you're using the 10586 post November upgrade to install Win 10. Some people reported problems after installing that.
If you could get the previous version (10240) it might be interesting to compare.
Download Windows 10 RTM Build 10240 ISO - Microsoft News
Otherwise you need someone who's solved exactly your issue, or an analysis of your boot sequence. I'd assume you are familiar with such tools..