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Hdd Bad Sector Repair Freewareclevervia

Make your Maxtor 541DX hard disk drive as good as new by having bad sectors fixed with the help of this powerful software application HDD Bad Sectors Repair is a handy utility that, as its name. Disk Genius is one of the most popular hard disk management tools among IT. A bad sector on a drive is a sign of permanent damage to the drive. Unless you have reason to believe that your drive marked these sectors as bad incorrectly, you cannot 'fix' them. It means that a part of your drive is damaged to the extent that it can no longer reliably be read from and/or written to.

A bad sector is a sector on a hard disk that can neither be accessed nor written due to physical damage or failed flash memory transistors. Usually, users can get bad sectors report by running chkdsk to check hard drive for errors.

Position: How Tos - Disk Utilities- How to check and repair bad sectors?

Summary
This article is devoted to explaining bad sectors and introducing how to check and repair bad sectors using bad sector repair software. Bad sector can occur on all storage devices like hard drives, external HDD, flash drives and SSDs. A few bad sectors do not indicate that hard drive is surely to fail, as some bad sectors can be repaired successfully. There is no need to be panic when your hard drive contains bad sectors, you should always keep calm and follow this guide to get them repaired.

DiskGenius - A free tool to check bad sectors for hard drive, external HDD, SD card, flash drive, etc.

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Table of Contents


Overview on bad sectors

What is a hard drive bad sector?

A bad sector is a sector on a hard disk that cannot be used due to permanent damage (or an OS inability to successfully access it), such as physical damage to the disk surface (or sometimes sectors being stuck in a magnetic or digital state that cannot be reversed) or failed flash memory transistors. Something weird will happen if the hard disk has bad sectors, for instance, operating system cannot boot normally; hard disk can't be formatted; when you open a file, error is reported. These phenomena show that there must be bad sectors on the disk. In fact, it is very common that disk used for a long time has bad sectors. There are two types of bad sectors – physical (hard) and logical (soft) bad sector.

Physical / hard bad sectors are a cluster of sectors of the hard drive that are physically damaged. If a hard drive's head touches the rotating plater, that area will be damaged. For example, your computer gets bumped while its hard drive is writing data, hard disk is exposed to extreme heat, or some mechanical part fails, all these are likely to cause hard bad sectors. As to solid-state drive, bad sectors are the result of worn out flash memory cell or other defects. This type of bad sector cannot be repaired, but it can be prevented.

Logical / soft bad sectors are sectors on hard drive that appear to not be working properly. When operating system tries to read or write data stored on these sectors and finds error correction code (ECC) which does not match content of the sector, that indicates that something is wrong and these sectors may be tagged as bad sectors. Soft bad sectors are repairable by overwriting on disk with zeros, which can be done by bad sector repair software such as DiskGenius.

How do I know if my hard drive has bad sectors?

Hard disk might be one of the most fragile hardware among computer components. If not taken proper care, data would be at the risk of loss. Likewise, everything else, hard drive bad sectors give signs and symptoms. If you know the warning signs beforehand, you have a good chance to prevent disaster. Let's look at some signs telling hard disk probably contains bad sectors.

  • Drive becomes RAW and inaccessible. When you try to access it, you receive error messages such as 'Location is not available. Drive: is not accessible. Data error (cyclic redundancy check)'.
  • It takes a long time to run a program or read data, or software stops responding frequently. Computers slows down or freezes when the damaged hard drive in connected.
  • Hard drive makes strange noises when computer boots or you try to access data in this disk.
  • When you want to perform a quick format to the device, formatting fails with error message 'Windows was unable to complete the format'.
  • Windows keeps popping up a messaging telling 'Windows detected a hard disk problem' and suggesting backing up data.
  • Windows slows down and BSOD. Computer takes ages to start up or system booting always ends up with a blue screen of death.
  • S.M.A.R.T. information. There are tools that can read S.M.A.R.T. data of hard drive. If it shows the hard drive is failing, the disk is likely to have bad sectors.

What can cause bad sectors in a hard drive?

Sectors on hard drive can easily get damaged due to all kinds of reasons. Bad sectors are no longer available for data storage and cause data loss most of times. To prevent bad sectors, you need to know the most common reasons behind it. Here are some factors that can cause bad sectors:

  • Aging devices: Like other electronic devices, hard drive has an expected life span. If your hard drive has been used for a long time, it is likely to be wearing out and bad sectors might have been created over time.
  • Turn off computer improperly: Platters in hard drive rotate in a high speed when working, as heads have to read data from different location on the disk. When sudden power failure or improper system shutdown happens, heads in hard drive will be forced to back to situ. During this process, head is likely to touch or rub disk platters, damaging that area and causing bad sectors. In a similar way, if external hard drive is unplugged from computer directly without using safely removing hardware, bad sectors are likely to be caused.
  • Shaking or knocking: Though many manufacturers have tried their best to enable to enable the shock-resistant function, it does not mean you no longer need to worry about shacking or striking. Dropping hard drive or laptop to floor, excessive collision or knocking, especially when disk is working, can lead to severe physical bad sectors.
  • Poor quality: Hard drives with low quality tend to have shorter overall lifespan and develop bad sectors. Such kind of hard drive probably contains bad sectors when it is produced.
  • Dust: Working in a dusty environment is one of the most common causes that are often overlooked by users. As heads are very close to disk platters, if any dust falls into the disk, bad sectors will occur soon.

Free software to check and repair bad sectors

Is it possible to check or repair bad sectors on hard drive and USB drives? The answer is YES. There are bad sector check and repair tools online, and you can download one of them to help you perform a surface scanning. Besides, it is still possible to recover files from a damaged hard drive caused by bad sectors. Let's see a free bad sector repair tool – DiskGenius Free Edition.

DiskGenius Free Edition, compatible with all Windows editions, enables you to find out whether hard disk has errors. It is able to check and repair bad sectors for hard drives, SSD and USB storage devices such as external hard drive, SD card, USB flash drive. Meanwhile, it is free partition manager and data recovery freeware, which is trusted and recommended by millions of users.

As we all know, bad sector repairing damages data, thus you should backup or recover data beforehand. DiskGenius provides data backup and data recovery features, thus you can back up important data and save lost data, such as clone damaged disk, create a sector-level image for disk or partition, recover data from RAW drive or unallocated disk, restore lost partitions, etc.


How to check bad sectors for hard drive or USB drive?

Step 1 Start DiskGenius Free Edition on your computer, select the disk that needs checking bad sectors, and click item Verify or Repair Bad Sectors under Disk menu, as below:

Step 2 Click Start Verify button on the 'Bad Track Verification' dialog box, and DiskGenius starts to perform a surface scanning to find bad sectors.

Before you get started, you can set timeout value or scanning cylinder range by entering exact value. If you are not an expert and have no ideas about these settings, you can just follow default value.

Step 3 While verifying bad sectors, DiskGenius displays detailed information of hard drive sectors. Sectors marked by red blocked means damaged, and these are bad sectors. Severe does not mean bad sector, but it is likely to turn to bad sectors in the future.

Step 4 When scanning completes, DiskGenius reports how many bad sectors are found. You can click Save Report button to save the scanning result.

Note: If you want to check bad sectors for system disk which installs Windows operating system, you should use DiskGenius WinPE edition to complete the task in order to get a more accurate test result. To access DiskGenius WinPE Edition, you can either boot to WinPE from Windows directly (click 'File' menu > choose 'Reboot to DiskGenius WinPE version') or create a bootable USB disk.


How to repair bad sectors using free bad sector repair tool?

Important:

  • Checking bad sector is read-only process and does not affect disk itself or files on hard drive, however, repairing bad sector is a different story. Before trying any bad sector repairing solution, make sure you have a good backup of your files on the damaged disk, as repair action probably result in the loss of files or corruption of file system.
  • Repairing bad sector is of no help to data recovery. The bad sector repair destroys data on the disk; more exactly, it destroys data on bad sectors or near bad sectors. Thus, you need to back up data before the bad sector repair. It is common that the disk cannot read data due to bad sectors, and in such a condition, you need to recover data first instead of doing the bad sector repair.
  • Not all bad sectors are repairable such as physical bad sectors. If DiskGenius cannot repair all bad sectors on your hard drive, you can isolate bad sectors by creating a partition on the disk area that contains bad sectors and hiding the partition with the help of DiskGenius.

Step 1 Click Repair button if you want to repair bad sectors on the 'Bad Track Verification' window.

Step 2 You'll receive a warning that asks to back up data first. If you have created a backup for important data, click OK button. If not, click Cancel and backup your files.

Step 3 Another warning message from DiskGenius, which tells repairing bad sectors does not equal to recovering files and you should recover data first.

Click OK if file recovery is not needed. If you want to recover data, you should click Cancel and use File Recovery function to scan the disk to find lost data.

Step 4 When the repairing process completes, you will receive following message. Click OK button and close the software.


Questions and answers about bad sectors

1. Why hard drive gets bad sectors?

One of the reasons is that hard disk has bad sectors when it is manufactured; experienced data recovery engineers know which disk is likely to have bad sectors judging by its brand, manufactured time, working hours, etc. Another reason is the improper operations such as unduly defragment.

2. Do I need to fix bad sector issue as soon as possible?

Yes! It will become a vicious circle if you do not fix bad sectors timely, because that may cause more bad sectors. Therefore, you'd better detect bad sectors regularly and do bad sector repair timely. Meanwhile, though bad sectors are fixed, the disk is riskier of getting bad sectors than normal ones. So, you should be cautious when you use a disk that had bad sectors before and do not save important data on it. The logical bad sector can be fixed, while the physical bad sectors cannot be repaired, but usually they can be remapped. Bad sector repair and detect software can detect bad sectors, repair logical bad sectors, and remap physical bad sectors.

3. Can bad sectors be fixed via low-level formatting (LLF)?

Low-level formatting can be used to fix server bad sectors. However, the low-level formatting is a double-edged sword; it can fix bad sectors as well as do hard to hard disk, especially when the hard disk has physical bad sectors. Thus, the low-level formatting is the last choice of bad sector repair.

4. Is it possible that a new hard drive contains bad sectors?

It is barely known that when a hard disk is manufactured, there are areas on the platter that have bad sectors! These bad sectors, hidden in P-LIST and G-LIST, will not affect normal use and they can't be accessed by common software either. G-LIST can store several hundred bad sectors and the P-LIST can store about four thousand bad sectors. For more information about G-LIST and P-List, please read related articles. One thing to note if your hard drive contains irreparable bad sectors, it is not advised to store importance data on that disk for data security reasons.


Conclusion

It is a common occurrence that your hard drive or other storage devices develop bad sectors, and there is no need to be panic when you run into such issues. You can use DiskGenius Free Edition to easily check or repair bad sectors. In addition, do not forget to create backups for important files and keep backups on different disks in case that one of them fails to work.


Related guides

DiskGenius - Support to recover data from hard drive with bad sectors, clone or image disk with bad sectors, etc.

ô Free Download

Bad sector is one of the biggest threats to hard disk and the data inside. Even new hard disks from trustworthy brands and sources could come with defects, let alone to say if your internal or external hard drive has served you over years. Don’t be surprised when you realize that your PC is running slow or with errors, like blue screen and random crash. They are just saying it is time to check and repair bad sectors on your hard disks.

Why You Need to Fix Hard Disk Bad Sectors

Bad sectors are usually caused due to the overloading of system files, or virus and spyware which creates troubles for the hard drive. This issue has evolved out to be a big nightmare for owners of computer or external hard drive.

The bad sectors of hard drive are responsible for the low-level performance and overheating issues for the PC because it is very hard to read the data from a corrupted hard drive with bad sectors in it. Some users have also reported that they are facing the issue of Blue Screen of Death (BSoD) error in their PC. This is really annoying and irritating for the users because they can even lose their whole data if those bad sectors present in the hard drive is not removed.

If your hard drive bears any physical damage, then for a complete solution of this issue, you need to replace the whole hard drive with a new one after backing up of data present in the previous hard drive.

Troubleshoot Hard Disk Issue Manually

There is an in-built disk check & repair tool in Windows 10/8/7. But that tool is only capable of recovering data up to some extent. At any point of time, if you feel that your PC is creating some real issues with the performance, then you have to check the whole hard drive instantly.

  • Open This PC on Windows 10.
  • Right click on the partition that may have bad sectors. If you’re not sure, just repeat the steps on each partition one by one.
  • Choose Properties on the right-click menu, then navigate to Tools tab.
  • Deploy hard disk checking and repairing on Error checking and Optimize and defragment drive.

The in-built tool is quite handy, but more often than not it can only boost computer performance slightly. If the issues are not resolved by your PC itself, then you are supposed to take the help of external software which will help you out in this task.

We have prepared a list of top 7 freeware which will help you check and repair your hard drive effectively. Compatibility may be an issue with a particular freeware, but we assure you that all of them are really very good to resolve this big issue. So, let’s have a quick look on all of them.

Important: Repairing bad sectors with the following tools will remove the data stored on the bad sectors. You’re highly suggested use Jihosoft File Recovery to recover data from hard disk drive that are missing or inaccessible before trying any of them.

Best 7 Bad Sector Repair Software for Free

1) Disk Genius

Disk Genius is one of the most popular hard disk management tools among IT professionals, but not everyone knows that it also features with bad sector checking and repairing functions. The feature is hidden in Disk menu on the top bar where you can see and open Verify Or Repair Bad Sectors.

Though it is just a sub-function, Disk Genius is still qualified as the top 1 free back sector check & repair tool. The conditions of hard disk sectors will be presented by blocks in various colors presenting a straightforward report, then you just need to click Repair button to start the automatic repairing of hard disk bad sectors.

2) Data Lifeguard Diagnostic by WD

This software tool is probably one of the best software you will find to check and repair WD hard drives. Compatible with both Windows and Mac, Data Lifeguard will help you out to check all the sectors of your hard drive. Whether it is good or bad sectors, it will detect all the issues and create a detailed report. You can analyze the full report and take necessary measures to avoid data loss or other accidents.

Data Lifeguard Diagnostic supports WD Blue SSHD, WD Blue, WD Green, WD Desktop performance, WD S25, WD Xe, WD Black, WD Black SSHD, WD VelociRaptor, WD Purple, WD Ae, WD Red, WD Red Pro and much more to be listed. Check on the official website if your hard disk is not on the list.

3) SeaTools by Seagate

This tool developed by Seagate is a diagnostic tool that helps users determine the condition of your hard disk drive. SeaTools is from the well-known company in the industry of hard disk manufacture, but it also supports some non-Seagate hard disks. This software can be used in both Windows and Mac.

The user-interface is up to date which makes the job of the users very easy. That’s why Seatools is a pro to check the bad sectors of hard disk. In the whole PC scan, it will check all the files and sectors of hard disk whether it is internal or external,

4) Check Disk

Check Disk by Paehl is another powerful tool which can detect and fix the bad sectors of hard disk with an ease. This software comes with multi-language support system and that’s why users from all around the world choose this software for their personal use. The only drawback of this software is that it is exclusively available for the Windows users and not for Mac users. Otherwise, it is so called beast in this section to check the bad sectors of hard drive.

The full disk scan check will never let an issue to be left undetected. That’s why the name Check Disk really suits this software for sure. Almost all types of hard disks are compatible with this software. You can easily check on the website of Check Disk whose link is given above.

5) HDD Scan

Almost every type of SSD and HHD are compatible with this awesome software tool which is only compatible with Windows operating system. All types of defected and bad sectors present on the hard drives are fixed by this software automatically. You just have to give the command to run the full PC scan and the scan reports will get displayed in front of you within a few minutes depending on the size of the hard drive. All the reports can be saved in MHT format in the PC for the analyzation. This software is also well capable of changing some of the HDD parameter to fix the issues. If you use this software on your PC, then you will hardly suffer from any bad sector of hard disk at all.

6) Macrorit Disk Scanner

Repair Bad Disk Sectors

The real-time whole disk scan available in this software scanner will let you to find all the issues regarding the bad sectors. You can also track the status of the running scan process in a pop-up window. And as like other software tools, this software will also let you to download the file of scan process on your PC. PCs running on Windows OS are compatible with this software and moreover, almost every type of HDD and SDD is supported. So, at least try this software once.

7) Abelssoft Check Drive

This is our last pick in this list but the results which you can extract from this software are very helpful for users. As like other software tools we have mentioned, this tool will also serve you in the best possible manner. The real-time hard disk scan will let you to analyze all the bad sectors of hard disk very easily. This software will surely provide you the easiest way in which you can resolve all the issues and bad sectors present in the hard drive of your PC. Abelssoft check drive software is available in both paid and free versions. So, it is up to you that which subscription do you want for your PC.

Conclusion

Hard Drive Sector Repair Freeware

This article concludes that bad sectors present in the hard drives need to be fixed as soon as possible because the consequence can cost your whole data. These bad sector repair tools will definitely help you in this task in the right direction. If you use any other software which can replace the software present in this list, then please inform us in the comments section.

Best Bad Sector Repair Software

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