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    Senior Product Manager


Sometimes, we meet with some data errors, such as CRC (cyclic redundancy check). How about the advent of the error? How to eliminate the error? All in this essay.

What is CRC Error?

CRC, fully known as Cyclic Redundancy Check, is the data error detecting technology used for storage devices (hard disk, CD, DVD, USB, SD card) beyond digital networks. In the computer operating system, it is served as data verification method to check the data when they are being transferred or saved.
When CRC is built in the storage device, it will generate the cyclic codes used for data transfer. When the system gets access to the data, CRC will compare the cyclic codes with the target data. If it spots any bad point on the storage device being accessed, the CRC data error (cyclic redundancy check) will occur.
cyclic redundancy check data error
location is not available due to cyclic redundancy check data error

What can Cause CRC Error?

Now, we should learn about the factors that can cause the CRC data error. Here are the main factors:
  • Misconfigured system files
  • Registry corruption
  • Unsuccessful program installation
  • Accidental shutdown
  • Improper pullout
  • Bad blocks on storage devices
  • Attack from malware or virus

How to Fix CRC Data Error?

Note: Despite the CRC (cyclic redundancy check) data error block you to visit the storage devices, you can still recover the inside data. We recommend you take this action before fixing the CRC error. Once the data is overwritten or altered, they are hardly restored.

1. Run CHKDSK to Scan and Fix

With the CHKDSK utility on Windows, you can check the integrity of the disks and fix the logical file errors, the bad blocks and the file systems.
① Press the keys [Win + Q] and search [cmd].
search cmd to open command prompt
② Right-click at the result [Command Prompt], and then select [Run as administrator].
run command prompt as administrator in start menu
③ In Command Prompt, type [chkdsk F:/F] and press Enter to run this command.

Note: “F:” is the letter of the target storage device and “/F” is the fix order.

chkdsk f /f to fix sd card recovery
④ After that, the CHKDSK utility will check the disk and fix the errors.

2. Run SFC to Scan and Fix

SFC, or System File Checker, is a tool to fix the Windows system files, including DLL files, registry files and the other protected files. Thus, running SFC is helpful to fix the CRC error resulted from file system or registry corruption.
① Open Command Prompt. Then, type [sfc/scannow] and press Enter to run.
Check and fix system files Windows 10
② Next, SFC will scan the system files and replace the corrupted or lost files with new files.

③ It is time consuming. Please wait for it patiently and restart the computer afterwards.

completely finish scanning the disk
Reminder!If you cannot eliminate the CRC error through the above methods, you should format the device. Please refer to more details on this article if you are not clear about how to format a storage device. You are also welcomed to learn about how to recover data from the formatted data.

How to Recover Data from Inaccessible Storage Devices Due to CRC Error?

Renee Undeleter is professional software for data recovery. It supports to recover many file types in three recovery modes, including fast partition scan, whole partition scan and whole disk scan. That facilitates you to recover the lost data from the formatted/deleted, corrupted or inaccessible hard disk, SD card, USB and the other storage devices as much as possible.
Renee Undeleter - Powerful Data Recovery SoftwareRenee Undeleter data Recovery software

Easy to use Only simple steps to recover data from storage devices.

Multiple scan modes Fast partition scan, whole partition scan and whole disk scan for different recovery needs.

File types Support to recover pictures, videos, audios, documents, mails, etc.

Supported storage devices Recover data from recycle bin, SD card, external disk, etc.

Supported systems Windows 10, 8.1, 8, 7, Vista, XP, 2000 and Mac OS X10.6, 10.7, 10.8.

Easy to use Only simple steps to recover data from storage devices.

Multiple scan modes - 3 scan modes for different recovery needs.

Supported storage devices Recover data from recycle bin, SD card, external disk, etc.

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① Download and install Renee Undeleter. Then, launch the software.
② Select an appropriate scan mode. Take [Fast Partition Scan] as an example.
how to recover photos from sd card select the function fast partition scan in renee undeleter
③ Select the target drive or the target partition. Then, click [Next] to go on.
④ Check one way to scan, [Fast Scan] or [Deep Scan]. The former way is less time-consuming and the latter one can go through the whole drive.
select fast scan mode in renee undeleter
⑤ After that, select the target file types. If you are not sure the options, please select [Default Settings].
select the file types in fast partition scan
⑥ Wait for scanning. Finally, double-click the files to preview and check the target files. Click [Recover] to save them.
select the target files to recover in fast partition scan
Reminder!Remember not to save the recovered files on the storage device that is going to be fixed. Otherwise, the data will be easily overwritten during the process.