What is a cyclic redundancy check error?

Asked By: Bernabe Linnenfelser | Last Updated: 2nd May, 2020
Category: technology and computing data storage and warehousing
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Cyclic Redundancy Check is an error-detecting code used for data verification. When you get this error message, it means there is something wrong with the files or the hard drive. The error could be caused by the file itself or the hard drive. So first, copy the file to another drive to determine the cause.

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Similarly, you may ask, how do I fix a cyclic redundancy check error?

1. Using CHKDSK Utility

  1. Connect the storage device to your PC.
  2. Press 'Windows+Q' and type CMD in the search bar.
  3. Right-click on the 'Command Prompt' and select 'Run as Administrator'.
  4. A command prompt window appears.
  5. Hit the 'Enter' button and wait until 'chkdsk' utility repairs the disk errors.

Additionally, how do I fix DVD error cyclic redundancy check? Follow steps below to fix Cyclic Redundancy Check Error by CHKDSK utility.

  1. Launch the CHKDSK Utility. Right-click the drive that cannot access because of cyclic redundancy check error, and then tap "Properties" and go to "Tools".
  2. Choose Check Disk Options.
  3. Reboot Your PC to Start the Scan.

Besides, what is cyclic redundancy check error in hard disk?

Cyclic Redundancy Check is basically an error checking technique used for data verification. It is used by computers to specifically check the data stored in the hard drive or optical disks (DVD's and CD's). The error code occurs due to the following reasons: Cluttered hard disk. Registry corruption.

How does a cyclic redundancy check work?

A cyclic redundancy check (CRC) is an error-detecting code commonly used in digital networks and storage devices to detect accidental changes to raw data. On retrieval, the calculation is repeated and, in the event the check values do not match, corrective action can be taken against data corruption.

26 Related Question Answers Found

What is cyclic redundancy check with example?

CRC or Cyclic Redundancy Check is a method of detecting accidental changes/errors in communication channel. CRC uses Generator Polynomial which is available on both sender and receiver side. An example generator polynomial is of the form like x3 + x + 1. k : Number of bits in the key obtained from generator polynomial.

How do I fix a corrupted external hard drive?

How to fix a corrupted external hard drive WITHOUT formatting
  1. On the desktop, open This PC (My Computer) and select the desired external hard drive. Right-click it and select Properties -> Tools -> Click on Check.
  2. Use chkdsk.
  3. Use Disk Management.
  4. Use diskpart.

What can cause CRC errors?

There are many reasons a CRC error can occur. One of the most common reasons for this error is a packet error, which occurs when network communications are bad or go in and out. This creates vulnerability for invalid data to be placed into the file. Some other possible reasons are exposure to noise and poor wiring.

How do I run chkdsk on C drive?

To do this, open up command prompt (click Windows key + X then select Command Prompt - Admin). In the command prompt window, type in CHKDSK then a space, then the name of the disk you wish to check. For example, if you wished to perform a disk check on your C drive, type in CHKDSK C then press enter to run the command.

Why can't I initialize my hard drive?


Generally, if your disk shows not initialized, it's probably caused by MBR corruption or physical damage. If your disk becomes unknown and not initialized and shows as unallocated space, you can initialize the disk and then recover data with EaseUS Data Recovery Wizard to fix the issue.

How do I run chkdsk on external drive?

Run CHKDSK From Command Prompt
To open the Command Prompt, type "cmd" on the Windows 8 Start screen and click "Command Prompt." Type the following into Command Prompt and press "Enter" to run the disk check: chkdsk /f E: Replace the letter E with the letter corresponding to your external hard drive.

How do I initialize a disk?

To properly set up a blank hard drive, use these steps:
  1. Open Start.
  2. Search for Disk Management and click the top result to open the experience.
  3. Right-click the hard drive marked as "Unknown" and "Not Initialized," and select Initialize Disk.
  4. Check the disk to initialize.
  5. Select the partition style:
  6. Click the OK button.

How do I run chkdsk?

From Command Prompt
  1. Click Start.
  2. Type cmd at the Search program and files search box.
  3. Right-click on cmd.exe.
  4. Click Run as Administrator.
  5. Type in your Administrator password.
  6. When cmd.exe opens, type the command: chkdsk.
  7. Press Enter.
  8. You can run the tool with more parameters, like this: chkdsk c: /r.

How do I format an uninitialized hard drive?

Here are some steps through which you can eliminate hard drive uninitialized error:
  1. STEP 1: Go to Disk Management. Disk Management > right click the disk which is uninitialized and select 'Initialize Disk'.
  2. STEP 2: Proper alignment of hard drive.
  3. STEP 3: Run a Utility Program.
  4. STEP 4: Diagnostic Testing Tools.

What is CRC in zip file?


CRC stands for cyclic redundancy check. It is a calculation made from all the data in a file to insure accuracy. When you add a file to a Zip file, WinZip calculates a CRC value for the file and saves the value in the Zip file.

What does CRC mismatch mean?

CRC mismatch means that you don't have the same game files with other people.

How can I format using CMD?

Follow the steps below to format a drive:
  1. STEP 1: Open Command Prompt As Administrator. Opening the command prompt.
  2. STEP 2: Use Diskpart. Using diskpart.
  3. STEP 3: Type List Disk.
  4. STEP 4: Select the Drive to Format.
  5. STEP 5: Clean the Disk.
  6. STEP 6: Create Partition Primary.
  7. STEP 7: Format the Drive.
  8. STEP 8: Assign a Drive Letter.

Can not perform cyclic copy?

With XCOPY, if the destination back-up directory (folder) is a sub-directory of the source directory, it gives off the “Cannot perform a cyclic copy” error. If it ran, it would cause back-up sub-directories to be created within the back-up sub-directories and would not end until all hard drive space used up.

What does it mean to initialize a disk?

When MBR on your disk is corrupted, you will see your disk showing up as "Unknown, Not Initialized". Thus, initializing a disk means to rebuild MBR on the disk, which will NOT ERASE DATA on your disk. You need to further partition and format the drive, which will surely ERASE your disk data.

What is data error?


data error - Computer Definition
A condition in which data on a digital medium has been altered erroneously. The error can manifest as several incorrect bits or even a single bit that is 0 when it should be 1 or vice versa. See parity checking.

Can't read from the source file or disk?

Secondly, format the disk to permanently remove "Can't read from the source file or disk" error message. After retrieving all your files, you can try disk management tool to format your external hard drive, SD card or USB flash drive to permanently remove "Can't read from the source file or disk" error message.

What does file record segment is unreadable mean?

If you have encountered the "File record segment is unreadable" error, do not ignore it. File record segment is unreadable" indicates that there is a problem with the hard drive. This could mean that the hard drive was corrupted physically or logically, is failing, and you are at risk of losing your data.