Windows 8.1 won't boot in Chameleon - "The boot configuration data for your PC is missing or contains errors"

[WimboJallis121]

Hi guys, I'm dual booting Windows 8.1 and OS X Yosemite on my PC. However I've just had to replace my motherboard (Gigabyte Z79-X Gaming G1) and after fitting the replacement I've not been able to boot back into windows. I have one disk formatted to GPT which contains both OS's, and always used to work fine. I used to be able to boot straight into my SSD, which would load windows, or I would load the chameleon bootloader from my bootable USB to go into Yosemite. However since the board has been replaced I am no longer able to boot straight into Windows. I understand that to run Windows straight from Chameleon the disk needs to be converted to MBR, and at the moment I just receive the message from Windows Boot Manager saying "The boot configuration data for your PC is missing or contains errors"

 

So my first question is, is there anyway in which I can fix this issue, essentially making it how it used to be without loosing anything (it's a long shot, but worth a try) by loading windows straight from my SSD? Or if not, is there a way in which I can convert my GPT disk to MBR without loosing anything from either of my OS X or Windows partitions?

 

Does anyone have experience with this? If neither of these options are possible, what would my next best option be? I really REALLY don't want have to wipe the disk and start from scratch Obviously I can only access my Mac, so any solutions need to be able to perform from there. I also have the Windows 8.1 instillation disk, so I can use CMD in Windows if I "attempt" to reinstall. Thanks in advance, I appreciate any help.