Recovering damaged sectors of a boot partition is a difficult and time-consuming process, but quite doable. It should only be borne in mind that performing the recovery operation for damaged sectors of the boot partition requires a sufficient level of understanding of the operation of system services.
Instructions
Step 1
Download the Diskedit.exe utility from the package from the MS-DOS boot volume.
Step 2
Select the "Configuration" command from the "Tools" menu of the application window.
Step 3
Uncheck the Read Only box and confirm your selection by clicking OK.
Step 4
Select "Disk" from the "Object" menu of the application window and go to "Physical Disk".
Step 5
Specify the required Hard Disk and click OK to scan the selected disk and generate report data for cylinder 0, side 0, sector 1.
Step 6
Select the "Partition Table" item in the "View" menu of the application window and save (write down) information about the starting and ending cylinders, sectors and sides of the damaged partition.
Step 7
Select "Physical Sector" from the "Object" menu of the application window and enter the values of the start cylinder, side and sector in the corresponding fields of the section.
Step 8
Specify the desired value for the "Maximum number of partitions" and click OK to confirm the command.
Step 9
Remember that the main loading cylinder is one side up. That is, if you are looking at cylinder 0, side 0, sector 1, go to cylinder 0, side 1, sector 1. The offset (leftmost column) should be 00000000.
Step 10
Remember the location of the original boot sector and search for the backup boot sector.
Step 11
Divide the total number of cylinders by two and subtract five from the resulting number to give the cylinder used (for Windows NT version 3.x).
Step 12
Return to the "Physical sector" item of the "Object" menu and enter the resulting cylinder number, side 0, sector 1, maximum sector value and click OK (for Windows NT version 3.x).
Step 13
Select the Find command from the Tools menu and enter the hexadecimal string 4E 54 46 53 20 in the search bar (for Windows NT version 3.x).
Step 14
Make a note of the cylinder, side and sector numbers found and make sure that this position matches the beginning of the sector (for Windows NT version 3.x).
Step 15
Copy the found sector (for Windows NT version 3.x).
Step 16
Go back to the "Physical Sector" item in the "Tools" menu and enter the cylinder, side and sector for the backup boot sector (for Windows NT version 3.x).
Step 17
Make sure only one sector is selected and click OK (for Windows NT version 3.x).
Step 18
Go back to Physical Sector in the Object menu and enter the target cylinder, side, and sector values that you saved in step 6 (for Windows NT version 4.0).
Step 19
Make sure only one sector is selected and click OK (for Windows NT version 4.0).
Step 20
Specify the "Select" command in the "Edit" menu and select the entire sector using the arrow keys.
21
Choose the Write To command from the Edit menu and locate the original boot sector that you saved in step 5.
22
Confirm your choice by pressing the OK button and press the OK button a second time to execute the command to overwrite the selected sector.
23
Exit the application and restart your computer.
