Friday, September 25, 2015

Fix Bad Sectors Hard Drive on Windows 7, 8, 8.1, 10 Part 2

Before read this article, I recommend read the first part of this article.
Fix Bad Sectors Hard Drive on Windows 7, 8, 8.1, 10

       5.   Does the disk is still proper to use...? My answer is YES.
       6.   How long can be use...? Can use for a long time.

In this case, although the bad has spread, but not evenly distributed in all the disk surface. There are some important things, about the spread of bad sectors

  • If the first bad at position <100 Mb, this is bad news for hard drive (SMART Failure), but if the first bad  >100 Mb (many possibilities that could occur).

  • Bad sectors spread on all drive. This is a bad news for hard drive


       1.   Fix bad with HDD Regenerator under Windows always fail

             Solution; try another method.
  • eject HD, connect as external HD and fix it, or
  • make HDD Regenerator CD bootable, restart, enter BIOS setting by press F2/Delete, SATA Controller Mode from AHCI change into IDE/Compatibility, save BIOS, restart and boot from CD Room. After all bad finish to fix (make sure, scan and fix bad, from 0 – end sector). After all bad finish to repair, restart, enter BIOS, SATA Controller Mode from IDE/Compatibility change into AHCI. Save BIOS, restart, Start Windows Normally. After that, scan bad sector with HD Tune and make sure, no bad on hard drive. 
After finish repair bad with HDD Regenerator, scan with HD Tune to make sure, no bad available

       2.   Repartition Hard Drive.

             Solution;  do repartition after all the bad sectors successfully repaired. If repartition
                            under condition, bad still available on hard drive, next time Operating System will not
                            work well.

  • After repair bad finish, and make sure with HD Tune, follow instruction bellow
  • After desktop back, recovery all data, save into another disk. Make sure all data has been saved.
  • Install fresh copy OS, and repartition hard drive. I recommended, repartition used Bootable CD Windows
  • Insert Bootable CD Windows, on the screen create partition. Create partition like a picture

  • click "Drive options advanced" - Delete all partition HD
  • Create new partition. Type; 60.000 Mb – OK. After type; 60.000 Mb and OK, automatically show “Partition 1 System Reserved = 350Mb” and “Partition 2 = 59.65 GB”
  • Create Partition 3. This place is drive to install OS. Example, I type 100 GB. You can type more than 100 GB (up to you).
  • Unallocation Space. Free space after create Partition 3. Example, 340 GB. For unallocation space, you can create partition through Disk Management on the Control Panel, after Windows installation is finish.

       5.   Select Partition 3 – click Next to continue OS installation
       6.   After installation is finish. Open Control Panel – View by: Large Icons – Administrative Tools -
             Computer Management - Disk Management.

       7.   Right click D: 59.65 GB – select Change Drive Letter and Paths – select Remove drive letter – Yes.
             Know, partition 2 detect 59.65 GB, NTFS, drive letter none
       8.   Right click Unallocation: 340 GB and Create New Partition – NTFS – drive letter D: –
             Quick Format.
       9.   Now the drive ready to use and I hope hard drive can survive for a long times.
             You can continue to install driver and applications.


How about if I repartition with Third party software (EASEUS, Partition Magic, AOMEI Partition, etc)...?

For this case, I suggest, repartition should use Windows Bootable CD. I do not recommend, repartition with third-party software. Why...?

0 – 6459 Mb                =   No bad found
6460 Mb – 54312 Mb  =  bad sectors area
54313 Mb – end           =  No bad found

  • 0 – 6459 Mb
Bad sectors can expand (forward or backward) from the point of initial bad.
Front sectors
-  We must prevent bad sectors spread to forward.
-  We have to do partition in this area, apart from the bad areas. example; system reserved on
    Win7 = 100 Mb, Win8 350MB. At least for Win8, from 0 - 350MB is not found bad.

Isn’t it bad has been fixed...? Yes.
What is there to fear…?
If the story of hard drive is one/two bad found, I am not worried. Because, the story of bad sectors is 27 bad found, I have to be careful, but I don’t fear with this condition. So that should be done, to prevent damage to happen again, to be careful in making decisions.

From the picture above;
Partition No.1
350 Mb = System Reserved = place to save the Windows boot files.
59.65 Gb = NTFS = drive letter is none = not in used to save files = hide partition
100 Gb = NTFS = C drive = Operating System drive
Partition No.1 has three advantages. 1) Windows boot files are stored in a safe place (350 Mb = no bad in this area). 2) Protecting the front sectors, of possibility, the spread of bad sectors. 3) 59.65 Gb. Although it has been repaired, because this area never happened bad sectors, using partitions, this section was separated from the hard disk usage and not used to store files.

Partition No.2
60 Gb = NTFS = drive letter is none = not in used
100 Gb = NTFS = C drive = Boot files and OS files
Partition No.2. Boot files and operating system files, stored in a safe place (100 Gb). This area does not have a history of bad sectors.
Partition 2, does not protect the front sectors. In repair bad sectors, partitioning is useful for preventing the spread of bad sectors.
Partition 2, making the front sectors is open and unprotected.

From the above analysis, my decision is Partition No.1. To create a Partition No.1, use Windows Bootable CD, when the installing the OS.
  • 6460 Mb – 54312 Mb

Damage in this area has been improved. Is this area safe to use ...? For this case, because of bad sectors has spread. Although it has been repaired, and you use it to store the OS or data, it is possible, there will be new bad in other places (new bad will appear on the another place in this area). Partition aims to isolate this area, to prevent the spread of bad happens, hide it from the hard disk partition, and formatted, so this area is read properly. So, the OS will read this area: no bad found, file system NTFS, drive letter none (hide partition), used space 59.65 Gb, free space 59.65 Gb.

Replacing the hard disk is one good solution, but in my opinion, this approach does not develop engineering techniques in hardware repair. If any damage to the hard disk, a solution that does is replace the hard disk, then there will be no progress in engineering techniques.
Replacing the hard disk is the last solution, if the engineering efforts deadlocked.
Improvements are engineering techniques to overcome the problem, starting with the analysis, continued to make improvements, and the feasibility study. I hope, this engineering techniques useful. Thank you :)

Read more Fix Bad Sectors Hard Drive on Win 7, 8, 8.1, 10 Part 1
Read more Fix Bad Sectors Hard Drive on Win 7, 8, 8.1, 10 Part 3