While booting up , error comes "Error loading operating system"

My PC laptop was working perfectly , one day my laptop hanged , and became unresponsive, so I powered it off by long pressing power button.
And then I re started , I got error : Error Loading operating system.

I checked my BIOS , I tried doing UEFI Disable/Enable , did not worked.
I have booted my laptop using Hiren's boot disk 15.2.

I have checked MBR , it is OK. with partition table and 55 AA sequence.

I have found that , checkdisk is giving error that the drive is RAW.
And I have checked using disk management utility , that it is formatted NTFS. I am confused.

Please help how to resolve this.

Work through the steps for Troubleshooting Windows 7 Failure to Boot starting with rescuing your files and then testing the hard drive.

When you get to the partition Wizard boot disk steps post back a picture of the disk management window, using the paperclip icon in reply box.

Although drive C is showing unformatted , but I can easily access all the content.
Even explorer is showing it, with its capacity and type.
Any solution , except formatting it ?

Please follow the steps I gave you earlier. This time don't skip any of them.