Does not matter if the data on your hard drive is alive or not, without valid boot sector, you will not be able to access it. Like you cannot get inside your house, when the door is locked, and the key is lost or damaged. The freeware utility, developed by the respectable Roadkill.Net, Boot Builder, allows you to create your own custom boot sector from scratch. You get an opportunity to recreate or restore boot sectors lost due to virus or other damage to a drive. Boot sectors can be imported to a disk (and exported from there), or created from available template.
This program supports FAT and NTFS boot sector types for Windows operating systems Windows 9x/Me, Windows NT 4, Windows 2000, Windows XP, Windows Vista, Windows 7.
Access website and download the operating file: http://www.roadkil.net/program.php?ProgramID=3