CHK File Extension

CHK file icon
ScanDisk Format Fragment
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What is CHK file?

The CHK extension refers to retrieved fragments of Windows files, which were created with ScanDisk or CHKDISK , - tools used for searching for errors in disc space. CHK files are simply previously erased fragments of data.

Sometimes after a sudden loss of power or unplugging an USB device, the data processing will not be completed. While scanning a volume with the indicated tools, a damaged file system will be repaired. Part of data will be stored in the FOUND folder on disc on which the damaged files were found.

Storing and erasing CHK files

After performing a scan of a hard drive with ScanDisk or CHKDISK, CHK files are stored in a system catalogue, e.g.: FOUND.000. Usually there are no contraindications for deleting such files because they contain information stored in other places than a hard drive. It is an exact copy of data from the CHK files.


However, if there occur any uncertainties regarding deletion of a CHK file, its content can be previously displayed with the CHK-Mate program, which enables to clearly identify what kind of data is contained within the file. Furthermore, there are also other programs available which enable to retrieve data from CHK files – UnCHK and FileCHK. The CHK files can be also opened using a hexadecimal text editor (e.g.: Frhed) – there is a chance that one will manage to verify whether the file is not empty. If after opening of such file with such editor user sees only „00” this indicates that the file is empty.

Programs that support CHK file

We hope we helped you solve the problem with the CHK file. If you do not know where you can download the application from our list, click on the link (which is the name of the program) - you will find more information there on the location where to download the secure setup version of the required application.

What else may cause problems?

There can be more reasons which determine that you are not able to open the CHK file (apart from the lack of the proper application installed).

First - the CHK file may be incorrectly associated with the application installed to support it. In this case, you need to change this association by yourself. To do this, right-click on the CHK file that you want to edit, click "Open with" and then select the program from the list that you have installed. After this operation, the problems with opening the CHK file should be solved.

Second - the file you want to open can simply be damaged. Then, the best solution is to find a new version of given file, or download it again from the same source as before (maybe for some reason in the previous session the download of the CHK file has not been completed and it cannot be opened properly).

Do you want to help?

If you have additional information about the CHK file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on CHK file.

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