'FATAL: No bootable medium found' (Win8 host/Win8 guest)

[MyotisVesperi]

Hello everyone,
I am trying to create a VHD (or a similar format image) from a Win8 64bit which came pre-installed on my new notebook (it's an OEM license so I don't have the OS installation discs).
I'm planning to use this VHD to create a virtual machine with Virtualbox.
I use Virtualbox both in Windows and Ubuntu hosts but to keep it simple I'm having problems with Virtualbox running on a Win8 hosts (the same host I'm trying to image).
I used both Macrium Reflect and VMware vCenter Converter to image my OS and created two virtual HDs, a VHD and a VMDK, but when I create a new VM and try mounting the virtual hard disks the VM fails to boot.
All I have is a black screen and a 'FATAL: no bootable medium found' message.
I tried several combinations of settings (IO/APIC on and off, IDE and SATA controller) and even tried to turn on the EFI feature (in this case Virtualbox crashes).
Still nothing.
I'm wondering if I did something wrong when creating the VHD/VMDK because it looks like the virtual hard disks are not bootable.
When imaging my HD I only imaged the partitions which were strictly necessary for Windows, I didn't include my Data partition or the Hewlett Packard Recovery Partition.
I'm attaching both the virtual machines logs and a screenshot of my HD's partitions, hopefully somebody might find that useful to understand what's gone wrong.
Thanks in advance.

[socratis]

It seems that your host is booting from EFI. VirtualBox's implementation for EFI is not complete and as such I expect it to fail.

Are you trying to have a second Windows installation on VBox (and you're missing the installation media, that's why you're trying to virtualize your host), OR are you trying to make a backup of your host?

[MyotisVesperi]

Thanks for your reply and sorry if I took quite a long time to answer, these are troubled times for me.
Yes, the boot partition is an EFI partition, Windows 8 uses that feature.
And you got it, I'm trying to have a second Windows installation on VBox (and I'm missing the installation media, that's why I'm trying to virtualize my host).
My notebook came with an OEM license and thus I do not have any installation media.
I'm actually planning to get rid of Win8 and downgrade to Win7 (I do have a physical media for that matter) but, being a web developer, I first wanted to create a virtual HD of my current Win8 installation to use in the future for testing purposes.

In these last weeks I further investigated the issue and came to the conclusion that the problem IS NOT with VBox, the problem is that the software I used to create the VHD (VMware Converter Standalone) cannot properly configure the boot partition on the Virtual Disk.
Looks like a few people had the same problem, as you can read here:
http://kb.vmware.com/selfservice/micros ... Id=1037507
https://communities.vmware.com/thread/2 ... 5&tstart=0 (second post from top)

The key of the problem seems to lie in an inaccurate BCD configuration data... I have found a few resources about this issue but am still looking for an expert's advice...
Any idea?

Thanks for your help.
Regards,
Stef.

[socratis]

I've only done physical to virtual (P2V) once, with an old NT4 system. I used Disk2VHD from Microsoft. Worked out great. But, it was BIOS, not EFI. I would search for "P2V site:forums.virtualbox.org".

[MyotisVesperi]

I did try using Disk2VHD but looks like the VHD it produced is not bootable either for some strange problem.
I think I'll stick to VMware Converter.
Thanks for your answers,
Regards.