Windows 8 BCD problem

I have Windows 8 and I got the light blue screen that said Recovery The Boot Configuration Data file is missing some required information.
File:\BCD
Error code 0x0000000d
It just happened overnight, the laptop was OK Monday night, but failed to load Tuesday morning.

What I've done up to now:
To load an OEM Windows 8 disk I've gone and changed the UEFI boot option to Legacy and now the DVD is loading. I've loaded it up and gone into Troubleshoot - Advanced Options - Command Prompt and tried these:

bootrec /rebuildbcd - It returned with this text:

"Scanning all disks for Windows installation". It then found 1 Windows installation and then it asked me to press (Y) so it can be added to the boot list. I pressed Y and it returned with a message that "The requested system device cannot be found"

I then googled that reply and found this place: https://neosmart.net/wiki/bootrec/#bootrec_RebuildBcd_doesn8217t_work

I followed it but it failed on the first step:
The store export operation has failed.
The requested system device cannot be found.

It seems like it can't find the C-drive, but while in CMD I've loaded up the C-drive and can browse through all folders etc on this hard drive, so it can't be that the drive has failed.

Any help would be much appreciated.

Thanks,