how to fix corrupt files

Question

When copying files from PC to external memory 0x80070570 was shown. Check with chkdsc produced many result saying that my files are corrupted. How to proceed

without losing my files?

Answer 1

Hi thomas de beer,

Thanks for reaching out to Microsoft Q&A Forum. I understand that you are encountering error 0x80070570 when copying files to an external drive, and chkdsk reports file corruption, while you want to proceed without losing your files.

Please make sure you already tried the Q&A Assist steps. In addition, please try the following.

To narrow this down a bit:

1, Does the copy error occur with multiple external drives, or only with this specific device?

2, Are the affected files located on your internal system drive or only on the external drive?

In the meantime, you can try these steps:

1, Perform a read-only disk check on the source drive

• Open Command Prompt as administrator
• Run chkdsk X: (replace X with the source drive letter)
• This checks file system integrity without making changes

2, Try copying files using a more resilient copy method

• Use File Explorer to copy a small batch of files at a time
• Skip files that fail and continue with the remaining data

3, Use the built-in Windows robocopy tool to avoid retries on bad files

• Open Command Prompt as administrator
• Run robocopy X:\ Y:\ /E /R:0
• X is the source drive and Y is the destination drive

4, Check the external drive connection

• Connect the external drive directly to the PC without a hub
• Try a different USB port or cable if available

5, Scan the drive for malware or file system interference

• Open Windows Security
• Run a full scan on the affected drive

6, Check drive health using Windows tools

• Open Event Viewer
• Review Windows Logs under System for disk-related warnings or errors

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Answer 2

1

When you ran the check disk command did you use this command (replace X with the correct drive letter)?

chkdsk X: /f /r

Also, is it the internal or external drive that is indicated as having disk errors.

2

Download the widely available free CrystalDiskInfo utility, please provide a screenshot of what that utility indicates for the internal and external drive.

Answer 3

To address the issue of corrupt files indicated by the error code 0x80070570, you can follow these steps:

1. Run the System File Checker: This tool can help repair missing or corrupted system files. Open a Command Prompt as an administrator and run the command:

      sfc /scannow
   

   This will scan and attempt to repair any corrupted files.
2. Use Check Disk Utility: Since you mentioned running chkdsk, ensure you are using it correctly to repair the disk. You can run:

      chkdsk /f /r <DriveLetter>:
   

   Replace <DriveLetter> with the letter of the drive you want to check. This command will fix errors and recover readable information from bad sectors.
3. Backup Your Data: Before proceeding with any repairs, it’s crucial to back up your important files if possible. If the drive is accessible, copy the files to another location.
4. Check for Bad Sectors: If the disk has bad sectors, it might be necessary to replace the disk. You can use tools provided by your disk manufacturer to check the health of the disk.
5. Consider Professional Help: If the data is critical and you are unable to recover it yourself, consider using a professional data recovery service.

These steps should help you address the corruption without losing your files. However, always ensure to have backups to prevent data loss in the future.

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References:

• Troubleshoot bug checks (stop code errors)
• Investigate serious error in disk subsystem - Microsoft Engage Center
• Data corruption and disk errors troubleshooting guidance