I installed Windows 8 using EFI, and later on I installed Ubuntu using EFI as well. As I always do, I had trouble with the bootloaders. Ubuntu replaced the bootloader on the EFI, which I was very well aware it would. Booting it only works half of the time though, and I'd rather use BCD than GRUB because the Windows 8 BCD starts Windows while you make the decision wether you want to boot Windows or Linux and I mainly use Windows.
Either way. Like I said, it only works half the time. By that I mean sometimes when I boot from EFI it says "Select proper boot device" and then i have to boot using the MBR. The same thing happens vice versa. Setting the MBR as the default boot device reports the same error now and then and then I have to boot from the MBR on another harddrive (No, not EFI).
Basically my question is this: How do I remove the GRUB2 prompt and make BCD appear instead?
I tried installing the bootloader to the EFI partition using bootrec
and bcdboot
following this procedure:
First I mounted the EFI partition using diskpart (B: being the EFI volume and J: the Windows volume)
cd /d B:\EFI\ del ubuntu bootrec /fixboot bcdboot J:\Windows /l en-gb /s B: /f ALL
And then I rebooted. The result is a broken EFI partition which doesn't boot anything but I can still boot from the MBR on another harddrive.
Source: http://superuser.com/questions/550643/restore-windows-8-efi-after-installing-ubuntu-efi
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