How to fix cyclic redundancy error

July 21, 2020 by Brayden Callaghan


If a cyclic redundancy error occurs on your computer, this guide will help you fix it.

TIP: Click on this link to repair Windows errors and increase system performance.

A cyclic redundancy check or CRC error indicates a hard disk failure. The fact that you see this when you try to copy a file indicates that the wrong point may be in the file itself. We need to verify this, try to restore the file and restore the hard drive.



Here on this blog, we explained how to fix the "Cyclic Redundancy Check" error and the steps to recover data lost due to a problem with the Stellar data recovery software.

Cyclic redundancy check (CRC) is, in fact, a data verification method by which a computer checks the accuracy of data on a storage medium (hard disk, optical storage media such as CDs, DVDs, etc.). ) CRC detects random changes in raw data on a data medium.

A CRC error occurs due to damage to the hard disk, improperly configured files, damage to the registry file, overload of the hard disk, installation failure of the program, or defective footprint.

Despite the specific reason, a CRC error is a serious problem that must be resolved as soon as possible to avoid system crashes and, above all, data loss.

How To Solve A Data Error Problem (checking By Cyclic Redundancy Code)?

To fix the CRC error, you need to restore the hard drive by running the CHKDSK utility and command line. CHKDSK checks the integrity of your hard drive and corrects logical file system errors, bad sectors, and file system metadata. You can run CHKDSK as follows:

How do I fix cyclic redundancy check on SD card?

Method 1:
Now you need to right-click on Start and select the command line (administrator). In a new command prompt window, enter the following command: sfc / scannow. Then press ENTER. Thus, you can analyze and correct the error during a cyclic redundancy check. Wait for the process to complete and restart the computer.

After CHKDSK completes checking for errors, reconnect the media to the system and try to access it through the file manager. If you can access the data without errors; Copy the data immediately to a safe place on your system and format the hard drive or other media using the disk management tool or DiskPart.

disk cyclic redundancy error

NOTE: If the problem persists, format the drive. The format erases all data from the storage device. If you do not want to lose data, you must follow the latest solution given in this post, which is more efficient and optimal.

SFC means System File Checker, which is used to restore Windows system files, including Windows DLL files, registry files, or other protected files. Sometimes a CRC error occurs due to a damaged file system or registry filesas described above.

SFC scan detects a problem with the file and replaces the damaged or damaged file with a new one. The whole process can take from 5 to 20 minutes, depending on the size and size of the file. Follow these steps to start an SFC scan:

How do I fix DiskPart has encountered an error data error cyclic redundancy check?

How to effectively fix data error (cyclic redundancy check) in DiskPart?
  1. Download, install and run the AOMEI Partition Assistant. Right click on the disk to check.
  2. In the pop-up window, select "Check if the section contains a damaged sector" and click "OK."
  3. Click “Start” to start the exam.

After completing the SFC scan, reboot the system and try to access the files from the media. If the problem persists, read the following solution.

If none of the solutions above is right for you, you can use powerful data recovery software such as Stellar Data Recovery Professional for Windows. With this tool, you can recover data from badly damaged, formatted, reformatted, inaccessible hard drives and lost or deleted hard disk partitions with a few clicks.

This tool guarantees safe data recovery from all types of media formatted in exFAT, FAT (FAT16, FAT32) and NTFS, such as USB keys, hard drives and even scratched optical media (CD / DVD).


To avoid CRC errors, schedule a weekly or monthly defragmentation task on Windows. Also run CHKDSK every month to keep your hard drive clean and error free, including bad sectors.

If a CRC error occurs, stop using the system and try to resolve it as soon as possible. The error can lead to much more serious problems later, including the loss of your valuable data.

However, a data recovery tool like Stellar Data Recovery Professional for Windows is immediately available to save you from such situations by recovering deleted, inaccessible or lost data. Next time you run into data loss issues, visit Stellar website for the best solution.

May 2021 Update:

We now suggest using this software program for your issue. Also, Reimage repairs typical computer system errors, defends you from file loss, malicious software, computer system failures and optimizes your Pc for maximum performance. You can fix your Pc challenges swiftly and prevent others from happening by using this software:

  • Step 1 : Download and install Computer Repair & Optimizer Tool (Windows 10, 8, 7, XP, Vista - Microsoft Certified).
  • Step 2 : Click on “Begin Scan” to uncover Pc registry problems that may be causing Pc difficulties.
  • Step 3 : Click “Repair All” to fix all errors.




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