What is a .KDZ File And How To Open It – Kaspersky Labs (Easy Guide)

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Have you downloaded a file with .kdz extension, but you are not sure what it is? It is important to know how to open this file – in order to be able to work with it. In this article we will explain what .kdz file extension is, how to open it and how to work with it.

What is a .KDZ file?

The .KDZ file extension stands for Kaspersky Virus Bases File. The creator of this file extension is Kaspersky Labs. The format of this data related file is binary.

What to know

There are currently 2 software that can open the .kdz file on 1 platform.

How to open a .KDZ file?

Below you can find an easy to understand, step-by-step guide to open the .KDZ file on your operating system/device.

How to open a .KDZ file on Windows (7, 8, 10)

To open the .kdz file on Windows, please follow these 4 easy steps.

1. In the first step you need to download the Kaspersky Anti-Virus and Kaspersky Internet Security software. You will be using this software in order to open the file.

Step 2

Step 2: Locating your .KDZ file

2. The second step is locating the downloaded file. If you don’t remember where you have downloaded your file to, you should check your /download/ folder as it usually gets automatically saved there.

Step 3

Step 3: Choose “Open with”

3. In the third step, after locating your file, right click on it and click “Open with”.

Step 4

Step 4: Choose the software and click ok

4. In the fourth step, after clicking “Open with”, you should see the Kaspersky Anti-Virus software that you have downloaded. Click on the software and click “OK”. That’s all, now you have opened your file on Windows.

Still cannot open the .KDZ file?

If you are still unable to open the .KDZ file, it might be because you are trying to open the wrong one. There are many similar file extensions that look like the .KDZ file.kdz – LG Electronics. You might be trying to open one of them. Please recheck the file extension again.


In this article you have learned how to open the .KDZ file with the Kaspersky Anti-Virus, Kaspersky Internet Security programs on Windows.