I am building a fresh system, and trying to install Windows 7 on a 3tb SATA drive. The board is an Asus P8Z77-V. The problem is that whenever I install windows, it converts the drive back to MBR and I ...

and now my system is not booting up it is just showing only c: drive and X: drive(i.e. hidden system drive) all other partition are now lost. I can just see c: drive and its size is showing up as 0% ...