Summary
The sectors are reallocated when the hard drive gets errors while writing, reading, or verifying data. The data is then moved to the spare sectors of the disk. This part of the hard drive operation prevents corruption and data loss. The Bad Sectors. A hard drive reallocated sector count or a drive with several bad sectors causes corruption. How to check your hdd health, Bad sectors and lot of other things that happening with your hard drive. Download link: PL. Bad sectors aren't restricted to magnetic hard drives, but also include modern solid-state drives. Bad sectors mainly result from two factors, one, from physical damage that cannot be undone, and the other from software errors, which can be repaired using troubleshooting techniques. Understanding the different type of Bad Sectors.
Bad sectors on you hard disk prevent you from smoothly accessing your device and using the files. Luckily, you have the chance to repair bad sectors using CHKDSK command. If there is data loss on your disk after removing bad sectors from your hard disk using CMD, you can try EaseUS Data Recovery Wizard to recover your lost files.
Quick navigation on how to repair and remove bad sectors from hard disk:
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Workable Solutions | Step-by-step Troubleshooting |
---|---|
Fix 1. Repair Bad Sectors Using CMD | Press the 'Windows' key and type cmd. Right-click 'Command Prompt' and choose 'Run as administrator'. In Command Prompt, enter the following command: chkdsk E: /f /r /x. If you don't want to perform the disk checking and repairing process in CMD..Full steps |
Fix 2. Recover Data from Hard Disk | Launch EaseUS Data Recovery Wizard, hover on the partition, external hard drive, USB, or memory card where you want to perform erased data recovery, and then click 'Scan'. Select the files you want to recover. After choosing the data, click 'Recover'..Full steps |
All About Bad Sectors
A sector is a subdivision of a track (a circular path on the surface of a disk) on your hard disk that stores a fixed amount of data. A bad sector is a sector that appears to be defective and it won't respond to read or write operations. There are two types of bad sectors:
Physical Bad Sector (Hard Bad Sectors)
As the name indicates, physical bad sectors are caused by physical damage on the hard disk. This type of bad sectors cannot be repaired using CHKDSK or any other tools. If you want to continue using a hard disk with physical bad sectors, what you can do is to use some third-party tool to block these sectors on the hard disk and prevent the system and programs from visiting them.
This was somewhat difficult, but not insurmountable, with a little patience.
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Logical Bad Sector (Soft Bad Sectors)
Unlike physical bad sectors, logical bad sectors generally result from software errors like a sudden shutdown of your computer and virus attacks. In most of the cases, the operating system will mark a sector as bad when they try to read data from the sector and find the error-correcting code doesn't match the contents of it. Fortunately, logical bad sectors can be repaired using CHKDSK.
How to Repair Bad Sectors on Hard Disk Permanently Using CMD
If there are logical bad sectors on your hard disk, you can repair them using the CHKDSK command. CHKDSK is a Windows built-in utility used to check the integrity of the disk and fix the logical errors found, including bad sectors. Being able to repair hard disk bad sectors, it is your first choice to repair a corrupted hard drive.
To permanently remove bad sector from hard disk using cmd:
Step 1. Press the 'Windows' key and type cmd.
Step 2. Right-click 'Command Prompt' and choose 'Run as administrator'.
Step 3. In Command Prompt, enter the following command:
Notes: 'E' is the drive letter of the disk you want to repair bad sectors from. The '/f' parameter tells CHKDSK to fix any errors it finds; '/r' tells it to locate the bad sectors on the drive and recover readable information; '/x' forces the drive to dismount before the process starts.
If you don't want to perform the disk checking and repairing process in CMD, you can choose to use the disk check feature, which works the same as CHKDSK.
Step 1. Open 'This PC', right-click the drive that has bad sectors and choose 'Properties'.
Step 2. Go to the 'Tools' tab.
Step 3. Click 'Check' to check and repair the bad sectors on your hard disk.
If you don't have any technical know-how and want to minimize data risks, using third-party software could be a better choice. The Command line is suitable for computer professionals since wrong commands can cause severe problems. Therefore, we strongly recommend you try an automatic command line alternative.
EaseUS Tools M is a practical computer fixing tool that is safe and light-weighted. It's a perfect alternative to CHKDSK command. Use this one-click tool to solve your computer issues.
To fix file system error or disk error:
Step 1: DOWNLOAD EaseUS Tools M for Free and install it.
Step 2: Open the software and select the 'File showing' option.
Step 3: Choose the drive and wait for repairing. After the operation completes, click the 'View' button to check the drive.
Recover Data from the Hard Disk After Repairing Bad Sectors
If CHKDSK stuck and failed to remove any bad sector from the hard disk, or it deleted your data on the hard disk, you may need to perform data recovery from your storage medium. In such a case, the hard drive recovery software - EaseUS Data Recovery Wizard can help.
- Notice:
- It's almost impossible to recover data from the bad sectors since they are inaccessible. However, data recovery software may be helpful if your device becomes inaccessible because of bad sectors.
Step 1. Select a location and start scanning.
Launch EaseUS Data Recovery Wizard, hover on the partition, external hard drive, USB, or memory card where you want to perform erased data recovery, and then click 'Scan'.
Step 2. Select the files you want to recover.
When the scanning has finished, select the deleted files you want to recover. Double-click the file to preview its content if you need to.
Step 3. Recover lost data.
After choosing the data, click 'Recover' and choose a location on another drive to save the deleted data.
The Bottom Line
Bad sectors are sections of your computer's hard drive that have been damaged and have lost the ability to save and store your data. And any data stored in a bad sector is likely to be lost. If you cannot open your files or programs properly, it is most possible that the hard disk might have filled with bad sectors which make your data unreadable or corrupt. To make your hard disk usable, you should remove bad sectors from hard disk using CHKDSK, which will repair the logical bad sectors and tell the system to jump over physical bad sectors.
Sep 24, 2020 • Filed to: Answer Hard Drive Problems • Proven solutions
Windows 10 upgrade has not been a happy affair with most users. While the issues related to the upgrade of Windows 10 range from no computer sound to the disappearance of the taskbar and desktop, there are also reports of the '˜Hard Disk Bad Sector' error after the installation of Windows 10. While the question has been visible on quite a few forums, one wonders what could be the reason behind the 'hard disk bad sector' error following the installation of Windows 10. Many users have to downgrade to the previous variants of Windows to save themselves the trouble of using Windows 10 with persisting 'hard disk bad sector' error.
- Part 1: How to Fix Hard Disk Bad Sectors in Windows 10
- Part 2: Overview of Hard Drive Bad Sectors
- Part 3: How to Recover Data from Bad Hard Disk Sector
Part 1: How to Fix Hard Disk Bad Sectors in Windows 10
It’s good to note that most Windows 10 users face a hard disk bad sector error. This happens soon after they install their Windows software. Some downgrade their system software to Windows 8 or an earlier version for fear of facing the Windows 10 bad sector error. From today onwards you should not fear using Windows 10, as the following steps can help you scan and correct your hard drive’s bad sector errors. To fix the bad sector in Windows 10 or Windows 8, carry out the following steps:
Step 1: Click Search on the upper right side corner of your Windows screen. If using your touch screen digital gadget, swipe in from the right corner of the screen and touch Search.
Step 2: Click This PC and right-click the drive to choose Properties.
Step 3: Choose the Tools tab and go to Check beneath Error checking. This may request you to enter admin login details.
Hard Disk Bad Sector Check
Step 4: Evaluate the scan results via the Error Checking scan result. Go to click Scan Drive.
Step 5: Decide when to repair the file system. Go to Restart your computer to repair file system errors. Click on Schedule on the next restart. This will prompt a repair session the next time you boot your Windows 10 or Windows 8 computer. Click Restart to begin the process.
Step 6: Give the Windows time to scan and repair your hard disk sectors. Don’t interrupt this process by working on another task on your PC.
Part 2: Overview of Hard Drive Bad Sectors
1. What is a Bad Sector?
Before we address the issue of '˜Hard Disk Bad Sector', it is important for us to understand what constitutes the bad sector or what it means. A bad sector on a hard drive is simply a minor sector including the storage space, and if it happens to be defective, it won't respond to read or write requests, which can cause serious loss to your data.
Bad sectors aren't restricted to magnetic hard drives, but also include modern solid-state drives. Bad sectors mainly result from two factors, one, from physical damage that cannot be undone, and the other from software errors, which can be repaired using troubleshooting techniques.
2. Understanding the different type of Bad Sectors:
If you are facing the issue of the 'Hard Disk bad sector', it can be a frustrating affair as finding solutions can be difficult or improbable. Therefore, we begin by understanding what the types of bad sectors are, and how they impact your hard disk.
- Physical or Hard- Bad Sector: This is the cluster that has been damaged physically. The hard drive's head may have touched the part of a hard drive and damaged it completely. It is also possible that some dust might have settled on the sector, and caused the damage. In the case of a solid-state drive, its flash memory cell may have been getting old, or there would have been the presence of wear and tear, thus causing the entire sector to become physically damaged. This is the type of bad sector that has no hope to be repaired.
- Logical- or Soft- Bad Sector: This is one of the bad sectors that are not physically damaged, and yet, doesn't work properly. The Windows may have attempted to read the data on the hard disk from this sector and that could have resulted in an error-correcting code (ECC), as it didn't match the contents of the sector, thus suggesting some error. The error can be repaired by overwriting the drive with zeros or through a low-level format. One can also solve the error of the 'hard disk bad sector' by using the Window Desk Check Tool to repair these sectors.
3. Causes of Bad Sectors
We understand the causes behind different types of errors in the '˜hard disk bad sector'.
Physical Bad Sector:
- The shipping may have been faulty with the bad sectors. The manufacturing and production techniques employed today aren't flaw-free, and there is room for error. Therefore, solid-state drives tend to ship with a few defective blocks. Marked as defective, they are remapped to some of the solid-state drive's extra memory cells.
- Natural wear can also result in physical damage as discussed above as they are re-written quite many times. They'll be remapped to the solid-state drive's extra or '˜overprovisioned' memory, and when the solid-state drive runs out of memory, the capacity of the driver shall begin to drop.
- Traditional magnetic hard drives can see bad sectors due to manufacturing error, natural wear, dropping, and poor handling, which results in the hard drive's head to touch the platter and does damage some of the sectors. Air entering through the otherwise sealed area or the setting of dust are contributing factors in the damage.
Soft Bad-Sectors:
- They are caused by software issues, like sudden shutting down of the PC, or the hard drive being disconnected in the middle of the writing to the sector.
- Mismatch in the error-correction code is also one of the reasons for this error.
- Viruses and Malware.
Part 3: How to Recover Data from Bad Hard Disk Sector
Hard Disk Bad Sector Check Software
Loss of data is common while facing the issue of the '˜hard disk bad sector', and therefore, we recommend you use Recoverit to recover your crucial data.
Your Safe & Reliable Hard Disk Data Recovery Software
- Recover lost or deleted files, photos, audio, music, emails from any storage device effectively, safely and completely.
- Supports data recovery from recycle bin, hard drive, memory card, flash drive, digital camera, and camcorders.
- Supports to recover data for sudden deletion, formatting, hard drive corruption, virus attack, system crash under different situations.
Check Mac Disk For Bad Sectors List
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You can restore data by conducting the Repair process. This involves the installation of data recovery software. Recoverit has been in use for quite a while and offers users the opportunity to restore their crucial data. Here, we take a look at how it's done. Installing vlc for mac.
Step 1 Select the 'Lost Partition Recovery' option, it provides a solution to recover data from the lost partition with ease. Also, it can be used to retrieve data from a hidden, deleted, resized, or inaccessible partition.
Step 2 Select a partition to start.
![Windows 10 check disk for bad sectors Windows 10 check disk for bad sectors](/uploads/1/1/9/3/119381600/871021676.jpg)
Step 3 Recoverit will start the scanning process automatically once you click on the 'Start' button. It will take a while to show all the files that were deleted or lost from the partition.
Step 4 Click the 'All-Around Recovery' option to start scanning the lost partition on the left-button of the software screen. It will scan deeply and search for more files from the partition, although it will take more time.
Step 5 You can select the targeted files from the file type categories on the left panel and preview them. After the preview, click the 'Recover' button to get your lost data back.
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