What is the CHK File Extension?

Reporter:   |   Refreshed: December 05, 2018

Microsoft Silver

CHK File Summary

The CHK File Extension has four different file types (mostly seen as the InterCheck Checksum Database format) and can be opened with eight distinctive software programs, with the dominant related application developed by Sophos (Sophos software). The CHK File Extension are listed predominantly as Data Files, while in other circumstances they can be Uncommon Files or Settings Files.

The CHK File Extension can be viewed on the Windows, Mac, and Linux operating systems. They are supported on both desktop and mobile devices. With a Popularity Rating of "Low", these files are not very common to your average computer user.

If you would like to learn more about CHK files and the software that opens them, please see the additional detailed information below. Also, you can learn how to do some basic CHK file troubleshooting if you are having trouble opening these files.

Low
Popular
814
Position

/ 11690

Active

State

5

December

2018

Updated

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Types of CHK Files

  4 known file types use this extension

Principal CHK Type

.CHK
Extension:.chk
Classification:InterCheck Checksum Database

CHK file is a database file that contains virus definitions for Sophos Anti-Virus.CHK file is updated with InterCheck.InterCheck is a service that checks a central virus reporting system.CHK file can be modified by changing the InterCheck reporting level and Syslog configuration settings.

Created by: Sophos
Function:Data Files
Folder: HKEY_CLASSES_ROOT\.chk

Software Programs That Open The InterCheck Checksum Database:


Sophos by Sophos

Windows
Mac
Linux

Other CHK File Associations

.CHK
Extension:.chk
Classification:Saved File Fragment

CHK file is also a Windows file fragment cleaned from the hard disk by ScanDisk or CHKDISK.CHK file is stored in the FOUND folder after performing the disk scanning.CHK file can be deleted since the information has been moved somewhere else on the disk.

Created by: Microsoft Corporation
Function:Uncommon Files

Software Programs That Open Saved File Fragment Files:


DIY DataRecovery CHK-Mate by Interscape

Compatible with:

Windows

UnCHK by Interscape

Compatible with:

Windows

FileCHK by Interscape

Compatible with:

Windows
.CHK
Extension:.chk
Classification:Netgear Router Firmware File

Created by: NetGear
Function:Settings Files

Software Programs That Open Netgear Router Firmware File Files:


Internet Explorer by Microsoft Corporation

Compatible with:

Windows
Mac

Mozilla Firefox by Mozilla

Compatible with:

Windows
Mac
iOS
Android
Linux
Solaris
illumos

Google Chrome by Google

Compatible with:

Windows
Mac
iOS
Android
Linux
.CHK
Extension:.chk
Classification:StarCraft Chunk File

CHK file is also an uncompressed Starcraft map included with the Blizzard installer CD.CHK can't be compressed.

Created by: Blizzard Entertainment Inc.
Function:Game Files

Software Programs That Open StarCraft Chunk File Files:


StarCraft by Blizzard Entertainment Inc.

Compatible with:

Windows
Mac

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CHK Demand


Primary OS Ranking

Windows (97.14%)
Macintosh (2.06%)
Linux (0.73%)
Chrome (0.05%)
Other (0.01%)


CHK File Complications


Troubles Opening CHK Files

Sophos is Not Installed

If you attempt to load your CHK file, you experience a message such as "Can't Open CHK Files". When this happens, it is commonly due to Sophos missing in %%os%%. Because your operating system doesn't know what to do with this file, you won't be able to open it by double-clicking.


Tip: If you don't have Sophos installed, and you know of another program to open your CHK file, you can try opening it by selecting from the programs listed under "Show Apps".


Outdated Sophos

In other instances, your InterCheck Checksum Database file version may not be supported by your version of Sophos. If you've got the wrong version of Sophos installed, you'll need to install the correct version. This problem is most common when you have an older version of the software application, and your file was created by a newer version that it cannot recognize.


Tip: Investigate your CHK file by right-clicking and selecting "Properties" to find clues on what version you need.


Summary: Not having the right Sophos version on your computer can cause problems opening CHK files.


Associated Difficulties Loading CHK Files

Errors opening InterCheck Checksum Database files can still occur even with the latest Sophos software installed on your computer. If you are still having problems opening CHK files, there may be other issues that are preventing you from opening these files. These other problems include (listed in order from most to least common):

  • CHK file type Registry entries are wrong
  • Deletion of the CHK file description from the Registry by mistake
  • Invalid installation of a CHK-associated program (eg. Sophos)
  • File corruption affecting your CHK file
  • CHK file integrity has been compromised by malware
  • Device drivers for CHK-related hardware are out-of-date
  • Your computer does not have the adequate system resources to open the InterCheck Checksum Database format

Quiz: Which file extension is a type of raster image?








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