How to Fix Cyclic Redundancy Check Data Error?

authorPic William Bollson Updated on 2022-06-23 17:06:06 to Hard Drive

Windows and errors go hand in hand. Most of these errors have simple fixes which you don't even have to spend two minutes on. However, if it's an error related to your data, things can get a little bit messy. The data error cyclic redundancy check is one such error. But first, what is a cyclic redundancy check? A cyclic redundancy check is sort of a verification carried out by your device to check for the accuracy of raw data on the various storage devices. If this check fails due to any reason it leads to the data error (cyclic redundancy check). This error should not be ignored as it makes it impossible to access the stored data on the device. Luckily, there exist several ways in which you can get out of this problem and we have listed them all in this guide, let's go through them one by one.

data error cyclic redundancy check

How to Fix Cyclic Redundancy Check Error (CRC)? Step-by-Step Guide

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Part 1: Overview of Data Error (Cyclic Redundancy Check)

1. What is Cyclic Redundancy Check Data Error?

As mentioned earlier, a cyclic redundancy check is an oversight mechanism by the system to check the accuracy of raw data on your device. If the check is unable to tally the check values of a processed file with the existing one, it results in what we know as the data error cyclic redundancy check ssd.

2. What Causes Cyclic Redundancy Check Data Error?

A Lot of factors can contribute to this error, the most common ones being network or storage-related issues. Some of the known causes include:

  • Corrupted partition, application, file, or storage device.
  • Device connected to an unstable or bad network.
  • Changes in files metadata or file name while in use.
  • Changes in the registry file.
  • Abrupt shut down.
  • Improperly connected hard drive.

Part 2: How Do I Fix a Data Error Cyclic Redundancy Check?

Prepare: Recover Data from Hard Drive with Cyclic Redundancy Check Error

A Hard Drive affected with a data error cyclic redundancy check external hard drive error runs a high risk of losing all data. You should be ready with a solution to retrieve the data if it gets lost. Tenorshare 4DDiG Data Recovery is that solution. A fast and compact tool that is primed to recover data from almost any situation, the 4DDiG is the only thing you need for data retrieval after fixing the CRC error. Follow these simple steps to get your data back in no time.

  • Recover files from inaccessible cyclic redundancy check devices.
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  • Step 1:Choose a Hard Drive
  • Connect the external drive and locate it on 4DDiG. Choose target file types in the upper-right corner and click Scan.

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  • Step 2:Scan Hard Drive
  • 4DDiG immediately examines the selected drive all around for missing data, and you may pause or stop the searching at any time if you've identified the files you want to recover. There are categories like Deleted Files, Existing Files, Lost Location, RAW Files, and Tag Files under the Tree View. You can also switch to File View to check file types such as Photo, Video, Document, Audio, Email, and others. Besides, you can search for target files or use Filter to narrow down your search on the left side of the panel.

    scanning local disk
  • Step 3:Preview and Recover Files
  • Following the discovery of the target files, you can preview and recover them to a secure location. In case of disk overwriting and permanent data loss, please do not save to the same partition where you lost them.

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Fix 1: Run Disk Check to Troubleshoot

The great thing about Windows is that it has a variety of tools that you can employ to troubleshoot the data error cyclic redundancy check hard drive error. Disk Check is one of them and amongst the safest at preserving your data during the fix. Here's how you can use it.

Step 1: Go to My Computer and right-click on the partition with the error and go to Properties.

Step 2: Once in the Properties window, go to the Tools tab and press the 'Check now' option under the error checking section.

fix data error (cyclic redundancy check) - run disk check

Step 3: Now, you can choose to scan the drive to troubleshoot it and solve the CRC error.

Fix 2: Use CHKDSK Utility to Repair Hard Drive

CHKDSK is the go-to utility for most of the data-related issues on Windows and the diskpart has encountered an error data error (cyclic redundancy check) is no different. To use the CHKDSK for this problem, follow these steps:

Step 1: Bring up Command prompt select run as Administrator. Type in the following command, 'chkdsk /r x:'. Here, x is the particular drive that is giving you the error.

data error cyclic redundancy check external hard drive - run CHKDSK Utility

Step 2: The CHKDSK utility will now scan the partition and give you the report and restart your PC. Your device will be fixed on startup if this method works. If not, move on to the next one.

Fix 3: Run SFC Scan to Repair System Files

If a logical issue with your hard drive is the source of this error then a System File Check (SFC) scan may also be able to solve your problem. Here's how:

Step 1: Run command prompt as Admin and type in the following command, 'sfc /scannow'.

data error cyclic redundancy check ssd - run SFC scan

Step 2: The scan will now commence and will troubleshoot the issue.

Fix 4: Format the Devices

If you are using a Seagate or any other company's hard drive and still can not get around the data error cyclic redundancy check external hard drive seagate error then it's time to format your hard drive.

Step 1: Open Control Panel and go to Computer Management.

Step 2: In the Disk Management application, select the partition to be formatted and right-click on it. In the menu that pops up, select the Format option.

Step 3: Now a format Window will pop up in which you'll have to select the type of format you want to do and other related things. Click OK and the Format process will begin.

data error cyclic redundancy check hard drive - format the drive

Fix 5: Go for Manual Repair

If none of the above methods work then you should get in contact with the registered dealers of your device or hard drive and try to get it fixed there.

Part 3: How to Prevent Data Error Cyclic Redundancy Check External Hard Drive?

The fixes given in this guide will solve your problem, but it's your responsibility to prevent the virtual disk manager data error cyclic redundancy check error from happening again. For this, you can put the following points into practice.

  • Scan your device regularly with Windows Defender and keep it up to date.
  • Power off and power on your device correctly. Avoid abrupt shutdowns.
  • Do not interfere with the registry or metadata of your device.
  • At any given time, keep 20% of free data on your system.
  • Use only a genuine copy of Windows.


1. How can I solve a data error cyclic redundancy check for a hard drive that is not initialized?

To fix data error cyclic redundancy check initialize disk error you can use the CHKDSK utility. Open up the command prompt and enter the command, 'chkdsk /r x:', x being the name of the drive, and run it.

2. How do I fix a cyclic redundancy check without a drive letter?

If you can not find the drive letter of your hard drive, update all the drivers related to the hard disk and restart your computer.

3. How do I fix data error cyclic redundancy check unallocated?

You can fix the data error cyclic redundancy check unallocated by the fixes mentioned here:

  • Run Disk Check to Troubleshoot
  • Use CHKDSK Utility to Repair Hard Drive
  • Run SFC Scan to Repair System Files
  • Format the Devices
  • Go for Manual Repair


That was all that you needed to know about the pesky Cyclic redundancy error. Right from the causes to the solution, we have laid down all that's important along with the supremely important data recovery hack, the Tenorshare 4DDiG Data Recovery. It ensures that your problems get fixed without even losing a byte of data in the process. All of this and more with no costs whatsoever. So what are you waiting for?

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