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When bad sectors appear on the disk especially on WD My Passport hard drives, it will result in hard drive crashes or failures, poor performance, data loss disaster, system boot problems, etc., problems. Follow provided solutions on this page to protect your disk data and repair bad sectors on your WD HDD or other devices with ease:

Download and install the best free apps for Diagnostic Software on Windows, Mac, iOS, and Android from CNET Download.com, your trusted source for the top software picks. Windows用Data Lifeguard Diagnostic. ソフトウェア（Mac用） GoodSync for WD. Install WD Discovery for Mac. Mac 用 WD Drive Utilities. Mac 用 WD Security. 製品ファームウェア 製品. 製品が上記にない場合は、製品ページにアクセスしてください。. 适用于 Windows 的 Data Lifeguard Diagnostic. Mac 软件 GoodSync for WD. Install WD Discovery for Mac. WD Drive Utilities（Mac 系统适用） WD Security（Mac 系统适用）.

Western digital diagnostic tool free download - Data Lifeguard Diagnostic for Windows, Western Digital Disk Manager Drivers, Diagnostic Tool, and many more programs. Download Western Digital Data Lifeguard Diagnostics - A powerful application that is able to perform drive identification, diagnostics and repairs on most Western Digital hard disk drives.

Part 1. Check WD HDD Bad Sectors (2 Ways)
Part 2. Replace WD HDD with Bad Sectors to A Good One (No Data Loss)
Part 3. WD HDD Bad Sector Repair Tools & Solutions (4 Methods)

Western Digital hard drives are one of the popular hard drives in the world. It can become quite difficult and annoying if your WD HDD contains bad sectors. Don't worry! Follow the reliable methods below to repair bad sectors on your Western Digital HDD immediately.

Part 1. Check the WD HDD Bad Sectors

When you are faced with bad sectors on WD HDD, the first thing to do is to know the situation. You need to check the bad sectors.

To check the bad sectors on your hard disk, you need a free tool to help you. EaseUS free partition software - Partition Master and Western Digital Data Lifeguard can both help. Try any one to test and check how many bad sectors are existing on your drive.

# 1. Check WD HDD Bad Sectors with EaseUS Partition Master Free

Trusted and recommended by millions of users, EaseUS Partition Master Free with its Surface Test feature is able to check bad sectors on hard disk, USB flash drive, pen drive, SD memory card and other storage devices without formatting. The Surface Test feature will identify bad sectors by reviewing the hard drive.

Step 1. Connect your device to PC, launch EaseUS free partition manager, right-click the WD HDD partition and click 'Surface test'.

Step 2. Wait for the operation to finish. All found bad sectors will be marked as red.

Once it finds bad sectors, it will make bad sectors with red color and let the operating system not to use them so to protect the saved data. You will know how many bad sectors are existing on your WD hard drive from the test result.

# 2. Test Bad Sectors Using Western Digital Data Lifeguard

Many users mistakenly take Western Digital Data Lifeguard as a bad sector repair tool as it can test the existing bad sectors on WD HDD and other types of storage devices.

It's Extended Test feature actually can only be applied to detect bad sectors. The test may take several hours (which is not as efficient as EaseUS Partition Master) depending one the size of the drive.

Step 1. Download Data LifeGuard Diagnostic (WinDlg_124.zip) and extract WinDlg.exe from the ZIP file.

Step 2. Right-click WinDlg.exe and select 'Run as Administrator'.

Step 3. Put a checkmark on 'I accept this License Agreement' and click 'Next' to continue.

This will let the program detect the installed hard drives on your PC.

Step 4. Select and highlight the hard disk you want to test and click the 'Run test' button.

Step 5. In DLGDIAG, select 'Option', choose 'EXTENDED Test'.

Step 6. Click 'Start', and then wait for the test to finish.

Step 7. Close the test window, and click 'View Test Result' on the new pop up window.

Check the test result and if you see Toll many bad sectors detected marked in red, you should follow part 2 to repair the bad sectors immediately.

You should know that there is no all-in-one bad sector repair tool or solution. To fully protect your data and repair existing bad sectors on your disk, follow guide tips one by one in the next two parts.

Part 2. Replace Western Digital Hard Drive with Bad Sector to A Good One

If the disk is badly damaged, it is impossible to repair the bad sectors. In case of this, your wise choice is to replace the disk and restore lost data as much as possible before bad sectors take over your WD HDD. Here we’d like to advise you to try powerful disk cloning software - EaseUS Disk Copy which is fully compatible with all OS.

Video Tutorial for Disk Cloning

For disk cloning, the video has listed the details you need to mention. If you plan to replace the western digital hard drive with bad sector to a good one, you can check the tutorial.

Do remember to connect your good new hard drive to the computer as a storage device before cloning the Western Digital hard drive with bad sectors to the good one. EaseUS Disk Copy will skip the existing bad sectors, only taking your data to the new disk.

Step 1: Download, install and run EaseUS Disk Copy on your PC.

Click 'Disk Mode' and select the hard drive that you want to copy or clone. Click 'Next' to continue.

Step 2: Select the destination disk.

Note: The destination disk should be at least the same big or even larger than the source disk if you want to copy or clone the source hard disk.

Step 3: Click 'OK' to confirm if the program asks to erase data on the destination disk.

Step 4: Check and edit the disk layout.

If your destination disk is an SSD drive, do remember to Check the option if the target is SSD.

Step 5: Click 'Proceed' to start the hard drive cloning process.

All you need to do is to wait for the process to complete. You can apply and activate this software to help you upgrade and clone the hard drive with bad sectors and restore data as much as possible.

And then shut down your computer, insert the newly upgrade hard drive to your computer and replace the old Western Digital hard drive, set the computer to boot from a new hard drive instead of the old one in BIOS. Then you can see the precious data you have restored.

Part 3. Fix Bad Sectors - WD HDD Bad Sector Repair Tools & Solutions

There are many Windows built-in tools that can help to fix bad sectors on your WD HDD. Follow to see how to repair bad sectors on your disk now:

# 1. Run Disk Check in File Explorer

Open This PC in File Explorer > Right-click the WD hard drive partition and select 'Properties' > On the Tools tab, click 'Check' button under the top Error checking > Scan drive if wanted or Repair drive if errors were found.

# 2. Run CHKDSK Command and Format Hard Drive

Step 1. Run CHKDSK command to fix soft bad sectors.

1. Press the Windows key and type cmd.

2. Right-click 'Command Prompt' and choose 'Run as administrator'.

3. Type chkdsk E: /f /r /x and hit Enter. (Replace E with the drive letter of your hard drive.)

Step 2. Format hard drive to usable again

1. Open Windows File Explorer, locate and right-click on your hard drive.

2. Select 'Format', reset the file system as NTFS, tick 'Quick Format' and click 'Start'.

# 3. Use CHKDSK Alternative - EaseUS Partition Master Free

The Check File System feature in EaseUS Partition Master is an alternative tool to CHKDSK command. You may also apply this feature to repair logical bad sectors on your WD HDD:

Step 1: Open EaseUS Partition Master on your computer. Then locate the disk, right-click the partition you want to check, and choose 'Check File System'.

Step 2: In the Check File System window, keep the 'Try to fix errors if found' option selected and click 'Start'.

Step 3: The software will begin checking your partition file system on your disk. When it has completed, click 'Finish'.

# 4. Perform Low-level Format

The traditional way to remove or repair bad sectors is to perform a low-level format. It will regenerate the disk layout and structure. Serious data loss is unavoidable. Also, it cannot be executed by ordinary users.

A better resolution for this case is to replace hard drive with data to a good one as recommended in Part 2. If you insist, back up data to another disk first and then take your drive to the local repair center or your manufature for low-level format.

Conclusion

This page mainly answers the questions about 'How to test if bad sectors existing on your disk' and 'How do repair bad sectors on WD HDD'.

To test bad sectors, you may try Surface Test in EaseUS Partition Master or run Extended Test on Western Digital Data Lifeguard.

To protect your disk from being damaged by bad sectors and your previous data, you should immediately clone and replace the WD HDD with bad sector to a good drive.

Then follow the four bad sector repair tools to fix bad sectors on your WD HDD disk.

FAQs about Bad Sectors

Some of you may have even more concerns and doubts about bad sectors. Check the FAQs below, you may find a satsifying answer.

1. How to fix bad sectors on WD external hard drive?

The ways to fix bad sectors on WD external hard drive are similar to the recommended tools on this page. You may check the disk first.

If the WD external hard drive contains many bad sectors, clone it with EaseUS Disk Copy with data to a good external hard drive immediately.

If there is very a few bad sectors, run CHDKSK, Disk Check, or EaseUS Partiiton Master with its Check File System feature in Part 3 to get rid of bad sectors immediately.

2. What does recover bad sectors tool do?

Basically, there are two types of bad sector repair tools available on market.

1). Test bad sector, no repair; 2). Test bad sector, repair.

The situation mainly depends on how many bad sectors are found on the target device. For very few or soft bad sectors, Disk Check, CHKDSK, EaseUS Partition Master with Check File System feature, can all work to recover the bad sectors.

For too many bad sectors, the disk is seriously damanged, there is no way to repair them all. The best resolution towards this issue is to follow Part 2, replacing old disk with data to a new one, skiping all bad sectors.

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3. Can a hard drive with bad sectors be repaired?

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The answer towards this question is Yes and No.

The reason is that bad sectors can be devided into soft bad sectors and hard bad sectors. And the answer to repair soft bad sectors on a hard drive is yes. The answer to repair hard bad sectors is no.

As for soft bad sectors repair, you can refer to Part 3 on this page for ditailed guidance. If you need more information about bad sectors, follow How to Repair A Bad Sector in Windows 10/8/7 as a guide.