This is my solution for the error I got when install wrong driver or maybe caused by the windows upgrade.
The solution were combined few of other's solutions I refer from the net.
credits to all of them.
First I just follow the instruction like on this video but not works for me. I notice I got an error access denied when I try to input bootrec /fixboot . I think this solution might correct if we don't get this error.
If you got same like me then skip this video.
