Have you ever seen the words “Bootrec/fixboot access is denied” appearing while you are trying to fix the Boot Configuration Data (BCD) yet? If you have encountered this problem, you must solve it first. Otherwise, you cannot repair any operation related to the BCD.
So how to solve it? Is it as difficult as we thought? Just follow the steps specified on ITPROSPT website. You will see that it is much more straightforward than you may have expected!