While saving the partition information I receive an error message saying "Error writing physical sector". Not able to save the partition information to the HDD.
Boot sector is write-protected. Some BIOS allow protecting Boot sector from write operations in order to prohibit viruses to damage it.
Run the software from Windows 95/98/ME "MS-DOS Prompt" console.
Hard Disk Drive is physically damaged ( i.e. has bad clusters ).
Check your BIOS settings. If you have setting like "Virus Warning", make sure that it's been "Disabled".
DO NOT try to run the software from under Windows Operating System! Boot your computer in "Command Prompt" mode (press [F8] when Windows boots) or boot from the floppy disk.
If your HDD is physically damaged, it's better to copy all important data from there and use another Hard Disk Drive or you are at risk of loosing your data.