"SecInspect.exe is a command-line diagnostics tool that allows administrators to view the contents of master boot records, boot sectors, and IA64 GUID partition tables. Additional features include creating hex dumps of binary files and backup/restore of sector ranges. Sector Inspector is a flexible diagnostics tool for safely collecting disk and file system-related data for offline analysis. Sector Inspector has additional features that allow backup and restore of sector ranges for use with other disk editing tools. Because low-level disk access is performed, administrator privileges are required to use most features of Sector Inspector." Get it
here.