7 Freeware To Check And Repair Hard Disk With Bad Sectors

Updated: November 15, 2018 / Home » Computer PC Hardware » SSD HDD & Sata Hard Disk

Bad sectors are basically sections of the hard disk that is inaccessible by the drive due to corruption or physical damage of the disk (possibly due to dropping of the hard disk). Because that particular section is in accessible, it can cause the operating system to crash (Blue Screen of Death, aka BSOD), files missing for no reasons or frequent application crashing.

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If it is physical damage, the only solution is to backup the hard disk and replace it. If it is due to software corruption and it effects the MBR (Master Boost Record), it can be easily fix with a HDD regenerator software. Every Microsoft Windows come with a tool to check for system error due to bad sector. You can help solve some computer problems and improve the performance of your computer by making sure that your SSD hard disk has no errors.

windows bad sector Bad Sector Blue Screen Death Files Missing Freeware To Check And Repair Hard Disk Bad Sectors

Depending upon the size of your hard disk, this may take several minutes. For best results, don’t use your computer for any other tasks while it’s checking for errors. To perform this task, right click ‘C’ drive, go to ‘Properties’, then select ‘Tools’ tab and click on the ‘Check’ button.

↓ 01 – Data Lifeguard Diagnostic by WD | Windows and macOS

western digital data lifeguard Bad Sector Blue Screen Death Files Missing Freeware To Check And Repair Hard Disk Bad Sectors

[ For Western Digital Hard Disk Only ] This is a Windows version of the Data LifeGuard Diagnostics. It will test WD internal and external drives. In additional, it can provide you with the model and serial of WD drives attached to the system. You will see the following options:

  • Quick Test – performs SMART drive quick self-test to gather and verify the Data Lifeguard information contained on the drive.
  • Extended Test – performs a Full Media Scan to detect bad sectors. Test may take several hours to complete depending on the size of the drive.
  • Write Zeros – writes zeros to the drive with options of Full Erase and Quick Erase. File system and data will be lost.
  • View Test Results – displays the latest test results.

Applicable Products – My Passport AV-TV, WD Elements Desktop, WD Caviar RAID Edition, WD Caviar Blue, WD Blue SSHD, WD Blue / SE / SE16 (SATA II / III), WD Blue, WD Green, WD Green / GP, WD Black SSHD, WD Black, WD Black2 Dual Drive, WD Red (Mobile), WD Red, WD Red Pro, WD Re+, WD RE / WD RE4, WD Se, WD Ae, WD Purple, WD AV-GP, WD VelociRaptor, WD AV, WD Protégé, WD Laptop Mainstream , WD Xe, WD Desktop Mainstream , WD Desktop Performance, WD S25

↓ 02 – SeaTools by Seagate | Windows and DOS

seatools seagate Bad Sector Blue Screen Death Files Missing Freeware To Check And Repair Hard Disk Bad Sectors

[ For Seagate Hard Disk Only ] SeaTools for Windows is a comprehensive, easy to use diagnostic tool that helps you quickly determine the condition of the disk drive in your external hard drive, desktop or notebook computer. It includes several tests that will examine the physical media on your Seagate, Maxtor or Samsung disk drive and any non-Seagate disk drive. SeaTools for Windows should run on both internal and external hard drives.

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After testing, a large percentage of the drives returned to Seagate for warranty replacement are perfectly good drives with “No Problem Found” (NPF). Returning a drive for warranty service means system downtime and inconvenience for you in packing and returning your drive product. Before you send in a drive, it is in your best interest to determine if a replacement drive is really necessary. This hard disk diagnostic utility will help you make that determination and possibly save you time and money and preserve your data. Some typical reasons for No Problem Found are:

  • File System Corruption
  • Driver Corruption
  • Broken Master Boot Record
  • Virus and Trojan Attack
  • Spyware, Adware and Keystroke loggers
  • Hardware Conflicts

In addition to diagnostics tests, SeaTools also offers several features to help you manage your storage product. Seagate Instant Secure Erase is available for Self Encrypting Drives (SED), providing U.S government accepted media sanitization. See section 3.Advanced Tests and Features.

↓ 03 – Check Disk | Windows

Check Disk

CheckDisk is a powerful tool for searching and repairing disk errors. It is quite similar to the ScanDisk tool or chkdsk.exe, supplied with the Windows operating systems (Windows 2000,XP,Vista,7,8,10 Server 2012 (possible 2016) and admin right). You can select either standard or full tests.

The full test additionally performs a sector check. It is capable of finding bad sectors on your disk and marking them as such. The program works both with hard disks (including SCSI and RAID) and removable media. Work on CD too. With german manual. Multilingual: English, German, Czech, Spanish, French, Italien, Polish, Japan, Slovak, Chinese and Norwegian.

↓ 04 – HDDScan | Windows


HDDScan is a freeware software for hard drive diagnostics (RAID arrays servers, Flash USB and SSD drives are also supported). The program can test storage device for errors (Bad-blocks and bad sectors), show S.M.A.R.T. attributes and change some HDD parameters such as AAM, APM, etc.

Supported storage devices – IDE (ATA) and SATA HDD, SCSI (SAS) HDD, External USB drives and all major USB boxes (see Appendix A), FireWire or IEEE 1394 HDD (see Appendix A), RAID volumes made of ATA (IDE) / SATA / SCSI HDDs (surface tests only), USB Flash (pen drives) – surface tests only, and SATA / ATA SSD – solid state drives.

  • Reading and analyzing identity information from ATA/SATA/USB/FireWire/SCSI HDD.
  • Changing AAM, APM, PM parameters on ATA/SATA/USB/FireWire HDD.
  • Reporting defect information on SCSI HDD.
  • Spindle start/stop function on ATA/SATA/USB/FireWire/SCSI HDD.
  • Reports can be saved in MHT format.
  • SSD SMART and Identity reports.

↓ 05 – EaseUS Partition Master (Surface Test Feature) | Windows

easeus partition master surface test Bad Sector Blue Screen Death Files Missing Freeware To Check And Repair Hard Disk Bad Sectors

EaseUS Partition Master, its Surface test is available for computer users. It can identify bad sectors by reviewing the hard drive. When it finds bad sectors, it will mark those sectors as bad with red color so that the system knows not to use them. It may allow them to be read, in case the data stored on the bad sector is still accessible, but they cannot be written to.

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↓ 06 – Macrorit Disk Scanner | Windows

macrorit disk scanner Bad Sector Blue Screen Death Files Missing Freeware To Check And Repair Hard Disk Bad Sectors

Hard disk bad sector is the most common problem and the disk is not safe to store data any longer. Bad sector will cause the important data loss and blue screen error sometimes, and even slow disk space. Macrorit Disk Scanner is a third party disk surface portable tool for scan disk bad sectors which provides you with better options and better performance than Windows native disk scanner.

With the fastest algorithm, this disk scanner free software usually could reach to the maximum speed that supported by the device. It is compatible with all recent versions of Microsoft Windows – both client and server, and supports major storage device types such as IDE and SATA HDD and SSD, SCSI, FireWire, hardware RAID, flash cards and a lot more.

  • Supported Storage Devices: DE HDD, SATA HDD, SCSI HDD, FireWire HDD, SSD, USB HDD, External HDD, Hardware RAID, Floppy drive, USB flash drive, Compact flash card, Secure Digital card, Memory card/Memory stick, Micro card, Zip drive, IPod, Other storage devices
  • Supported OSs: Windows Server 2003/2008/2012, SBS 2003, 2008, 2011,2012, Home Server 2011 & Windows XP, Vista, 7, 8 (Both 32& 64 bit)

↓ 07 – Abelssoft CheckDrive | Windows | Free/EUR10

checkdrive Bad Sector Blue Screen Death Files Missing Freeware To Check And Repair Hard Disk Bad Sectors

CheckDrive works as a “Disk Doctor” to scan for symptoms: typical hard disk failures. If issues are discovered, the tool acts immediately. If the error is not repaired in time, the affected computer can work unstable and crash frequently. The worst case occurs when hard drives fails completely – and the user suffers a lot when all the data stored is lost forever. CheckDrive analyses all the hard drives installed the computer, in order to increase the security of the data storage. The tool displays the so-called S.M.A.R.T. data and other functions and also calculates the health status of the hard disks.

  • Check hard disks for errors – CheckDrive offers you an easy way of checking your PCs hard drives for errors. Even Solid-state drives (SSD) are supported.
  • Shows drive information – CheckDrive shows info about your drives and determines if your hard drive needs to be cleaned or defragmented.
  • Monitors hard disks in real-time – The CheckDrive Background Guard monitors all the time the values of your hard drives.

7 comments on “7 Freeware To Check And Repair Hard Disk With Bad Sectors

  1. Gravatar
    ramana [ Reply ]

    Does the slow performance of Windows can also due to HDD Bad Sector?

    • Gravatar
      Ngan Tengyuen [ Reply ]

      not that I am aware of. Normally, windows will just ignore the bad sector.

      • Gravatar

        @Ngan Tengyuen – Not really. A sector that can’t be “read” properly will be marked as “pending”, but will still be used. It will only be marked as “bad” after an unsuccessful “write” try. So, if there’s a file on the sector that are difficult to read, the OS/HDD will try to read until it succeeds (poor performance/temporary freeze) or fails completely (error). Windows has no way to tell if the problem is in the sector or if the file itself is corrupted, it will only know for certain after trying to write something on that sector and fails, then it will mark as “bad”.

    • Gravatar
      G-kemz [ Reply ]

      Installing windows on a weak internal hard drive with bad sector could result to its sluggishness. My previous hard drive was so weak and sluggish while performing task that i had to replace one that solved my problem. I now use the former as external backup drive though with risk of losing my files.

    • Gravatar

      It can be. Sometimes a sector/block isn’t completely “bad”, but is difficult to read/write, in this case the HDD and OS will try to access the sector until it succeed, and this can lead to poor performance, freezes or errors.

      • Gravatar

        how to mark a sector/block that isn’t completely “bad” as bad. so the OS isn’t try to access it?

        • Gravatar
          Ngan Tengyuen [ Reply ]

          When Windows found a bad sector via the disk utility software such as CHKDSK or SCANDISK on Microsoft systems, these programs may mark the sectors unusable (most file systems contain provisions for bad-sector marks) and the operating system skips them in the future. The OS will automatically skip these sector in the future.

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