I Had the Windows 10 Pro then I had INACCESSIBLE_BOOT_DEVICE..what do I do?

[WPCentral Question]

I Had the Windows 10 Pro then I had INACCESSIBLE_BOOT_DEVICE...

I am an Insider and had the Windows 10 Pro on my laptop but I had INACCESSIBLE_BOOT_DEVICE error when I tried to reset my PC.

I had to reinstall Win 8.1 and now am trying to upgrade again to Win 10 Pro but both the automatic upgrade(where a windows icon appears) and the media creation tool DVD but it both wants me to just install the Home Single Language edition because of my (genuine) CD Key from my OEM.

How do I get back to installing Windows 10 PRO legally? The insider page just redirected me to the Media Creation Tool...

 

[MrBluster]

Did you solve this one? If you did I sure would like to know how. A windows update smacked my upgrade to pro also.