Data error (cyclic redundancy check)

There are situations when you connect your data storage device (an external hard drive, a RAID controller, or a memory card) to the PC as you usually do, but instead of files and folders you see the error message “Data Error (cyclic redundancy check)”. Such an error often happens because an operating system tried to check the consistency of the data stored on the disk and faced some difficulties. Problems can be caused by the incorrect software installation, write errors, bad sectors, or even lack of free space on the disk. Actually, "Data Error (Cyclic Redundancy Check)" is a quite serious error that can't be ignored. Furthermore, if the data stored on the device is important for you, do not accept to format the disk or to run CHKDSK for in-place-repair.

Data Error

Before trying to fix the “Data Error (cyclic redundancy check)” you should recover your data using special software and save the data to a safe place.

How to recover data in case of Data Error (cyclic redundancy check) using ReclaiMe File Recovery

  1. The first thing you should do is to prepare the storage device you are going to save the recovered data to.
  2. Connect the device that produces Data Error (cyclic redundancy check) to a PC.
  3. Download and install ReclaiMe File Recovery to your system disk.
  4. Choose the storage with Data Error in the ReclaiMe’s device list. To correctly identify the device in question, pay attention to the size and the connection type (if you connected the device via USB, look for it in the USB devices section).
  5. Data Error Recovery in ReclaiMe
  6. Click Start button. The software lets you preview the recovered files even before the end of scanning.
  7. If you are satisfied with the recovery result, buy ReclaiMe license key and copy the recovered data. To copy all data, choose the top level folder.

How to fix Data error (cyclic redundancy check)

Once you have saved the data to a safe place, checked if the files are opened and can be read, you can try to fix Data Error (Cyclic Redundancy Check). Since this error can be caused by different reasons there are different ways to fix the error. If the error was caused by the incorrect software installation or write errors – just delete files resulting in the Data Error. Cases of serious data damage require to use CHKDSK. Let's talk about the last way in detail.

To run CHKDSK you should go to My Computer, then select the needed device, right-click Properties, then Tools, then Check. Be ready that CHKDSK will work for a long time, the time is proportional to the disk capacity. As modern drives have quite a large size, it may happen that one may need a couple of days to complete the check. Note that CHKDSK works only for NTFS file system.

Also, we recommend to check S.M.A.R.T. status of the disk using, for example, Cropel or Hard Disk Sentinel. If you see that there are many bad sectors, you should not use this drive for storing important data because according to our experience, if the disk started to produce bad sectors, it is generally a bad sign, so, the best solution is to get rid of this device.

Still have questions?