.HHK File Recovery

Have files been deleted due to a user’s error or software error? Have you formatted a disk by accident and need to know how to recover the files? Read our .HHK file recovery guide for Windows, MacOS, Android and IOS in 2023.

HHK File Recovery

What is a .HHK file?

Help index file created by Microsoft HTML Help, a program used for creating Windows help documentation; saves an index of keywords that each open a help page when clicked; enables quicker lookups for common terms.

What Are Common Causes of ".HHK" Files Lost or Failure?

There are several common causes of ".HHK" files lost or failure:

  1. Accidental deletion: Users may accidentally delete ".HHK" files while organizing or cleaning up their computer system.
  2. Software issues: Software bugs or glitches can lead to the corruption or loss of ".HHK" files. This can occur during the installation, update, or use of a specific application.
  3. Hardware failure: If there is a hardware malfunction, such as a hard drive failure or a faulty storage device, ".HHK" files stored on that device can become inaccessible or lost.
  4. Virus or malware attack: Malicious software can infect and damage ".HHK" files, making them unusable or causing their loss.
  5. Power outages or system crashes: Sudden power outages or system crashes can interrupt the saving or accessing of ".HHK" files, leading to data loss or corruption.
  6. Human error: Mistakes made by users, such as accidental formatting of a storage device or improper handling of files, can result in the loss of ".HHK" files.
  7. File system errors: File system errors, such as file system corruption or bad sectors on a storage device, can cause ".HHK" files to become lost or inaccessible.
  8. Incompatible software or file format changes: If there are changes in software versions or file formats, ".HHK" files may become incompatible and fail to open or function properly.

It is important to regularly backup ".HHK" files to prevent data loss and to use reliable antivirus software to protect against malware attacks.

How to recover lost ".HHK" files?

Sometimes while working with a computer, laptop or other stationary or mobile devices, you may encounter various bugs, freezes, hardware or software failures, even in spite of regular updates and junk cleaning. As a result, an important ".HHK" file may be deleted.

Go to view
🧺 How to Recover Files and Folders After Sending Them to the Recycle Bin and Deleting? (Windows 11)

🧺 How to Recover Files and Folders After Sending Them to the Recycle Bin and Deleting? (Windows 11)

By no means should you think that the only way to recover a ".HHK" file is always to create it once more.

Use programs for recovering ".HHK" files if a file was lost after accidental or deliberate deleting, formatting the memory card or the internal storage, cleaning the storage device, after a virus attack or a system failure.

Programs to recover ".HHK" files

Looking for a way to get files back? In cases when files were deleted and they cannot be restored by using standard operating system tools, use Hetman Partition Recovery.

The tool recovers data from any devices, regardless of the cause of data loss.

Follow the directions below:

  1. Download Hetman Partition Recovery, install and start the program.

  2. The program will automatically scan the computer and display all hard disks and removable drives connected to it, as well as physical and local disks.

    File Recovery Software
  3. Double-click on the disk from which you need to recover ".HHK" files, and select analysis type.

    Hetman Partition Recovery - Analysis Type
  4. When the scanning is over, you will be shown the files for recovery.

    Hetman Partition Recovery - Files that Can be Restored
  5. To find a file you need, use the program’s interface to open the folder it was deleted from, or go to the folder "Content-Aware Analysis" and select the required file type.

    Hetman Partition Recovery - Deep Scan
  6. Select the files you have been looking for and click "Recovery".

    File Recovery Software - Files List for Recovery
  7. Choose one of the methods for saving the files and recover them.

    Saving recovered files in Hetman Partition Recovery

How to open file with ".HHK" extension?

Looking for how to open a stereo hTML Help Index image file file?

Programs that open ".HHK" files

Microsoft HTML Help Workshop Microsoft HTML Help Workshop

Additional Information

  • File type: HTML Help Index

  • File extension: .HHK

  • Developer: Microsoft

  • Category: System Files

  • Format: N/A


We will be happy to answer your questions!

Comments (1)

  • Hetman Software: Data Recovery
    Hetman Software: Data Recovery 18.12.2019 16:01 #
    Leave a comment if you have any questions about Recovering lost .HHK files after deleting, cleaning or formatting!
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Vladimir Artiukh

Author: Vladimir Artiukh, Technical Writer

Vladimir Artiukh is a technical writer for Hetman Software, as well as the voice and face of their English-speaking YouTube channel, Hetman Software: Data Recovery for Windows. He handles tutorials, how-tos, and detailed reviews on how the company’s tools work with all kinds of data storage devices.

Oleg Afonin

Editor: Oleg Afonin, Technical Writer

Oleg Afonin is an expert in mobile forensics, data recovery and computer systems. He often attends large data security conferences, and writes several blogs for such resources as xaker.ru, Elcomsoft and Habr. In addition to his online activities, Oleg’s articles are also published in professional magazines. Also, Oleg Afonin is the co-author of a well-known book, Mobile Forensics - Advanced Investigative Strategies.


Questions and answers

  • What is the file extension .HHK and what is its purpose?

    The file extension .HHK stands for "HTML Help Index." It is a file format used in Microsoft's HTML Help system.

    The purpose of .HHK files is to provide an index of keywords or topics for a help file created in HTML Help Workshop. These files contain a list of keywords or topics along with their corresponding locations within the help file. They are used to enable users to quickly navigate through the help content by clicking on specific keywords or topics listed in the index.

  • How can I open a .HHK file and what software do I need?

    A .HHK file is typically associated with Microsoft HTML Help Workshop, which is used to create and compile help files in the CHM format. To open a .HHK file, you will need the following software:

    Microsoft HTML Help Workshop: This is the main software required to open and work with .HHK files. You can download it for free from the Microsoft website.

    Once you have installed HTML Help Workshop, you can follow these steps to open a .HHK file:

    1. Launch HTML Help Workshop.
    2. Click on "File" in the menu bar and select "Open".
    3. Browse to the location of the .HHK file and select it.
    4. Click "Open" to open the file.

    HTML Help Workshop will open the .HHK file, allowing you to view and edit the contents of the help project.

  • Are there any specific steps or instructions to follow when trying to open a .HHK file?

    Yes, there are specific steps to follow when trying to open a .HHK file. Here's a general guide:

    1. Identify the software associated with .HHK files: .HHK files are commonly associated with Microsoft HTML Help Workshop, a program used to create compiled help files (CHM) for Windows applications.
    2. Install Microsoft HTML Help Workshop: If you don't have it installed, you can download and install it from the official Microsoft website.
    3. Launch Microsoft HTML Help Workshop: Once installed, open the program.
    4. Open the .HHK file: In the HTML Help Workshop, go to the File menu and select Open. Browse to the location where the .HHK file is saved and select it. Click Open.
    5. View the contents: The .HHK file contains a table of contents for the associated help file. You can browse through the contents and view the hierarchical structure of the help topics.

    Note: Opening a .HHK file alone will not display the complete help documentation. It is usually used in conjunction with other files like .CHM (compiled help file) or .HTML (individual help topic files) to provide a complete help system.

    Remember, these steps are specific to opening .HHK files using Microsoft HTML Help Workshop. If the .HHK file is associated with a different program, the steps may vary.

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