Have you ever had difficulties solving the problem "data error (cyclic redundancy check)"? Don't worry. Check out this post to simply and effortlessly fix cyclic redundancy check error and recover lost data via MiniTool software.

Data Error (Cyclic Redundancy Check)

In the Windows Seven forum and other major forums and portals, a large number of people are talking about the "data error (cyclic redundancy check)" problem. Let's see a real life example from cnet.com:

My Laptop shows 'Data error (cyclic redundancy check)' error while copying data from external HDD to my laptop. How to fix this problem.

When copying files, meeting the cyclic redundancy check data error might lose your data. No need to worry

What Is Cyclic Redundancy Check?

Note: Before fixing CRC error, we think you should know what the cyclic redundancy check is.

cyclic redundancy check (CRC), invented by W. Wesley Peterson in 1961 and further developed by the CCITT (Comité Consultatif International Telegraphique et Telephonique), is basically an error checking technique used by computers to specially check the data on your hard drive and optical disks.

1: Solved - Drive Is Not Accessible, Data Error (Cyclic Redundancy Check)

Has your hard drive ever been inaccessible because of the data error (cyclic redundancy check)? (picture as below)

 data error (cyclic redundancy check)

Top Recommendation:

When it comes to inaccessible hard drive, I guess you might be interested in this post 10 Situations Where We Can't Access a Partition in Windows, Along with Solutions.

CRC error can be caused by a variety of factors, such as registry corruption, a cluttered hard disk, an unsuccessful program installation, misconfigured files, etc. What happens when there is data error cyclic redundancy check?

First, they recover lost data from cyclic redundancy check external hard drive, SD card, USB drive, and other storage devices.

Second, they fix cyclic redundancy check data error.

You might be wondering:

"How to successfully recover lost data from drive which reports CRC error?"

To recover lost data from drive with CRC error, MiniTool Power Data Recovery is the best choice. It offers excellent performance, high security and simple operations. Download the file data recovery software and have a try. Here, we take the trial edition for example.

Free Download

Step 1: Launch this professional data recovery software to get its main interface as follows. Select the target drive that has the error "Drive is not accessible, data error (cyclic redundancy check)", and click Scan.

the main interface of MiniTool Power Data Recovery

Step 2: After scanning, all found data are listed in the following window. Now, you can check and preview needed files. Finally, save all selected files in a safe place. It is recommended to store selected files on another drive.

save all needed files

Top Recommendation
The trail edition can only scan lost data. To recover data, you need to choose its advanced edition. For instance, the Personal Ultimate edition not only can recover all found data, but also but also can recover data when PC won't boot.

With several clicks of the mouse, you are able to recover data from drive with CRC error without affecting the original data.

"MiniTool Power Data Recovery helped me to recover data from data error cyclic redundancy check external hard drive. It also can help you…"Click to Tweet


I used this software to successfully recover data from drive with CRC error!

Note: If your hard drive is physically damaged, please send it to professional data recovery companies for help.

After recovering data by using MiniTool Power Data Recovery, it is time to check drive error and fix cyclic redundancy check error by the following simple methods.

Data Error Cyclic Redundancy Check Fix/Repair

Method 1. Running the CHKDSK Utility

Step 1: Right-click the target drive you want to check, and then click Properties->Tools. Next, click "Check Now…" under "Error Checking".

Running the CHKDSK Utility

Step 2: Click on "Automatically fix the file system errors" to do a basic check and automatically repair problems with file and folders, and then click "Start".

Sometimes, running CHKDSK via right click makes it unable to run the scan and repair properly, and at this time you can try the alternate method of running CHKDSK.

Want to know the best way?

Step 1: Open the command prompt as Administrator. Only administrator has the necessary privileges to execute the scan.

Step 2: Type "chkdsk /f x:" into the command prompt. The letter "x" should be replaced with the letter name of the drive you'd like to run the scan on. Press Enter to run the command.

command prompt to fix CRC error

Step 3: Wait for the scan to complete. The process might take longer if there are problems with many files. Once CHKDSK has finished, it will give you a report and restart your computer.

If the cyclic redundancy check error still exists, you can try formatting the disk.

Method 2. Formatting the Disk

Note: Format will delete all data in your disk. It is recommended to recover lost data before what you are doing.

To format drive to fix the cyclic redundancy check error, you can try using MiniTool Partition Wizard Free.

Step 1: Download and install MiniTool Partition Wizard on computer. And then, launch it to get its main interface.

Free Download

Step 2: Select the target disk, click "Format Partition" feature from the left panel.

Step 3: Set partition label, file system and cluster size for the selected partition and click "OK".

format partition in MiniTool Partition Wizard

Step 4: Click "Apply" button on the top to apply the change.

Step 5: Restart your PC.

"I got a new skill on how to solve "Drive is not accessible, data error (cyclic redundancy check)" problem, it could help you…"Click to Tweet

After learning how to fix the "Drive is not accessible, data error (cyclic redundancy check)" problem, let's take a look at two other situations where you will encounter the CRC error and their corresponding solutions.

2: Solved - "Data Error (Cyclic Redundancy Check)" Error Message in Outlook


After downloading emails from Microsoft Outlook to your local computer, you may receive one of the following error messages:

  1. File path\filename.pst could not be accessed. Data error. Cyclic redundancy check.
  2. Data error (cyclic redundancy check)

In this error message, path\filename.pst correspond to the location and the file name of your Personal Folders (.pst) file--for example, C:\mypst.pst.

You may not be able to view some of the downloaded messages. When you click your Deleted Items folder, you may receive the following error message:

Error 0x80040116


Generally, cyclic redundancy check error occurs when your PST files is corrupted or maybe the hard disk has some issues where your PST file is currently stored. This error manifests, when you try to copy the original PST file to another location. 

In this situation, what should we do? Is it possible to recover lost emails? Can we solve this CRC error?


To resolve this issue, you may first try using free MiniTool Power Data Recovery to recover lost Outlook emails (There might be little hope for email recovrey to work, but you should give it a try regardless..), and then check your hard drive to fix CRC error. After that, re-create your personal folder files.

Note: The You may receive a "Data Error (Cyclic Redundancy Check)" error message in Outlook post will show you detailed steps on how to solve this issue.

3: Solved - Cyclic Redundancy Check Error on A DVD Disc

Before I show you how to fix CRC error on DVD disc, I will share a story:

I am trying to install sims3 but this installation stops in the middle and says
File: D:\GameDate\Packages\Fullbuild1.package
Error: Data error (cyclic redundancy check)

This problem can have many different causes, including: problem with the DVD or DVD drive, conflicting software (Paragon NTFS, Metakine DVD Remaster, Roxio Creator, CD emulation software like Alcohol 120%, Nero Image Drive), etc.

How do I fix the cyclic redundancy check error on DVD disc

First, you should ensure that the DVD disc is not damaged or scratched, and then clean it with a cleaning kit. After that, scan and defrag the DVD disc if necessary - make certain that the DVD has enough space left on it to install the game.

If none of the above works, the following may also help you:

  1. Open Windows Start menu.
  2. Select Run.
  3. Type msconfig.
  4. In the Services tab disable all items.
  5. In the Startup tab uncheck all items.
  6. Restart computer in Safe Mode (press F8 during bootup).
  7. While in Safe Mode insert The Sims 3 DVD disc.
  8. Use Windows Explorer to locate SETUP.EXE on the disc (actual filename may vary slightly).
  9. Right-click SETUP.EXE and select the option to run it as an Administrator.
  10. Installation should now proceed without any CRC errors.
  11. Reboot the computer normally.

After seeing the 3 situations of CRC error, I guess you may have a basic understanding of this "data error (cyclic redundancy check)" issue. Next, let's move onto the following part.

2 Necessary Tips for Data Error Cyclic Redundancy Check Fix/Repair

Tip 1. If you receive the warning "data error (cyclic redundancy check)" and your drive contains any important data, it's best to recover all lost data immediately before attempting to fix the error.

MiniTool Power Data Recover is the secret to recovering lost data from cyclic redundancy check of external hard drive, SD card, USB drive, and other storage devices.

Tip 2. Although MiniTool Power Data Recovery can help recover data, data loss is inevitable. Also, the cylic redundancy data error could come any time, which could be a critical cost.

In order to avoid data loss caused by various reasons like CRC error, the best method is backing up all your needed data. You can get more information and detailed steps from this "Copy Disk" post.

Bottom Line

Hope the instructions in this post help you fix the cyclic redundancy check data error effectively.

If you happen to know of other ways to repair CRC error, don't hesitate to let us know and we promise we’ll update this guide.

If you have any doubts or suggestions about MiniTool software, please leave it in the following comments or directly send to [email protected]. We will solve it as soon as possible.

Data Error Cyclic Redundancy Check FAQ

How do I fix a data error cyclic redundancy check?
  1. Recover lost data.
  2. Running the CHKDSK utility to do a basic check and automatically repair problems with file and folders.
  3. Format the drive.
How do you check cyclic redundancy error?
  1. Right-click the target drive you want to check.
  2. Click Properties->Tools.
  3. Click Check Now… under Error Checking.
  4. Click on Automatically fix the file system errors.
  5. Click Start.
What is cyclic redundancy check error in hard disk?
Cyclic redundancy check, CRC, is an error-detecting code. CRC error is widely used to detect accidental changes to raw data in digital networks and storage devices. A cyclic redundancy check indicates a bad spot on your hard drive.
Why do CRC errors occur?
Packet error, as one of the most common reasons for CRC errors, occurs when network communications are bad or go in and out. Noise and poor wiring also can cause CRC errors.
  • Linkedin
  • Reddit