How to Rebuild Boot Sectors / Repair FATs with DiskPatch
July 12, 2007 (Press Release) --
DiskPatch is a menu driven DOS program which helps you to solve a wide range of hard disk related problems.
DiskPatch helps you to avoid data losing. It provides an unique proprietary backup system to create on-disk backups of partition structures such as: the MBR, the EPBRs, boot sectors, and the windows 2000/2003/XP LDM as well. Once a backup exists, damage to any of the previously mentioned disk structures can be easily fixed by restoring the backup.
How to Rebuild Boot Sectors / Repair FATs
Boot sector repair is a streamlined process that always follows the same set of steps:
1. Select the problem disk
2. Select the problem partition
3. Run the check, a brief report is shown
4. If errors are found, select the repairs you wish to have performed
Additional options are available when the partition that requires repairs has been selected:
you can edit the boot sector
you can write boot code for a number of known boot sector types
Checking and Repairing
After having selected the disk to work with, select [Rebuild boot sectors] from the [Perform repairs] menu. Next a list of partitions that were found is shown. Select the partition you wish to work with and press . A menu is shown that allows you to select the action you wish to perform:
The 'Check and Fix Boot sector' procedure in detail
Step1. Analysis
When this option is selected DiskPatch will display a window as following that contains information on the current step of the procedure and the result (if any). Results (as displayed on the right side of the window) are color coded:
green: test passed, no error found
yellow: status could not be determined, other errors need to be fixed first
red: test failed, one or more errors exist that need fixing
The tests that are performed are displayed in this status window. Tests that may take some time will be accompanied by the progress bar at the bottom of the DiskPatch main screen. When the tests have been completed the 'suggested repairs' window will appear.
The window above will always be displayed, even if no errors were found. If needed you can enforce a repair by changing a repair option to 'yes'.
The 'View analysis details' screen above shows the boot sector. The current values are displayed and color coded to display any errors, and the severity of the error:
green: value is correct
yellow: value is incorrect but should not cause the partition to be in-accessible. Yellow colored errors will not trigger a repair
red: value is incorrect and may cause the partition to be in-accessible. Red colored errors will trigger a repair
Press any key to close this window and return to the 'Suggested repairs' window.
Step2. Checking Results and Selecting Repair Options
The 'repair' menu may look like as follow
DiskPatch will enable the repairs that it considers to be essential; in most cases you'll only need to select 'continue' to start the actual repairs. If you wish to change a repair option, select it and press : the option will toggle between yes and no. When you are ready to continue, select 'Continue'.
Step3. Repair
DiskPatch will now continue with the repairs. The actions that are performed during the repair are different for FAT, FAT32 and NTFS. FAT32 and NTFS require a little user interaction.
a. Repairing FAT boot sectors and FAT tables
b. Repairing NTFS boot sectors
The first thing that needs to be determined is the cluster size for the partition.
Selecting the cluster size manually will save some time, but you have to be absolutely sure about the size you select; if you select the incorrect size the MFT will not be located and the repair will fail. In general it's best to let DiskPatch determine the cluster size automatically. If you let DiskPatch determine the cluster size the following screen will appear:
When the cluster size has been determined DiskPatch will attempt to locate the MFTs. When the MFTs have been located the repair procedure is complete. DiskPatch will display the end result for the repair. Press any key to close the status window and return to the partition list.
DiskPatch helps you to avoid data losing. It provides an unique proprietary backup system to create on-disk backups of partition structures such as: the MBR, the EPBRs, boot sectors, and the windows 2000/2003/XP LDM as well. Once a backup exists, damage to any of the previously mentioned disk structures can be easily fixed by restoring the backup.
How to Rebuild Boot Sectors / Repair FATs
Boot sector repair is a streamlined process that always follows the same set of steps:
1. Select the problem disk
2. Select the problem partition
3. Run the check, a brief report is shown
4. If errors are found, select the repairs you wish to have performed
Additional options are available when the partition that requires repairs has been selected:
you can edit the boot sector
you can write boot code for a number of known boot sector types
Checking and Repairing
After having selected the disk to work with, select [Rebuild boot sectors] from the [Perform repairs] menu. Next a list of partitions that were found is shown. Select the partition you wish to work with and press . A menu is shown that allows you to select the action you wish to perform:
The 'Check and Fix Boot sector' procedure in detail
Step1. Analysis
When this option is selected DiskPatch will display a window as following that contains information on the current step of the procedure and the result (if any). Results (as displayed on the right side of the window) are color coded:
green: test passed, no error found
yellow: status could not be determined, other errors need to be fixed first
red: test failed, one or more errors exist that need fixing
The tests that are performed are displayed in this status window. Tests that may take some time will be accompanied by the progress bar at the bottom of the DiskPatch main screen. When the tests have been completed the 'suggested repairs' window will appear.
The window above will always be displayed, even if no errors were found. If needed you can enforce a repair by changing a repair option to 'yes'.
The 'View analysis details' screen above shows the boot sector. The current values are displayed and color coded to display any errors, and the severity of the error:
green: value is correct
yellow: value is incorrect but should not cause the partition to be in-accessible. Yellow colored errors will not trigger a repair
red: value is incorrect and may cause the partition to be in-accessible. Red colored errors will trigger a repair
Press any key to close this window and return to the 'Suggested repairs' window.
Step2. Checking Results and Selecting Repair Options
The 'repair' menu may look like as follow
DiskPatch will enable the repairs that it considers to be essential; in most cases you'll only need to select 'continue' to start the actual repairs. If you wish to change a repair option, select it and press : the option will toggle between yes and no. When you are ready to continue, select 'Continue'.
Step3. Repair
DiskPatch will now continue with the repairs. The actions that are performed during the repair are different for FAT, FAT32 and NTFS. FAT32 and NTFS require a little user interaction.
a. Repairing FAT boot sectors and FAT tables
b. Repairing NTFS boot sectors
The first thing that needs to be determined is the cluster size for the partition.
Selecting the cluster size manually will save some time, but you have to be absolutely sure about the size you select; if you select the incorrect size the MFT will not be located and the repair will fail. In general it's best to let DiskPatch determine the cluster size automatically. If you let DiskPatch determine the cluster size the following screen will appear:
When the cluster size has been determined DiskPatch will attempt to locate the MFTs. When the MFTs have been located the repair procedure is complete. DiskPatch will display the end result for the repair. Press any key to close the status window and return to the partition list.
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