KDZ File Extension

What is KDZ file?

KDZ file format is used Kaspersky antivirus software. File contains data that assist the software in process of detection and quarantine of viruses and other malicious software.

KDZ file location

KDZ files are installed along with Kaspersky software and are located in installation directory: Kaspersky LabAVP12Bases.

Programs which support KDZ file extension

The following listing features KDZ-compatible programs. KDZ files can be encountered on all system platforms, including mobile, yet there is no guarantee each will properly support such files.

Updated: 09/28/2021

How to open file with KDZ extension?

Problems with accessing KDZ may be due to various reasons. What is important, all common issues related to files with KDZ extension can be resolved by the users themselves. The process is quick and doesn’t involve an IT expert. The list below will guide you through the process of addressing the encountered problem.

Step 1. Download and install Kaspersky Anti-Virus

The most common reason for such problems is the lack of proper applications that supports KDZ files installed on the system. The solution to this problem is very simple. Download Kaspersky Anti-Virus and install it on your device. The full list of programs grouped by operating systems can be found above. The safest method of downloading Kaspersky Anti-Virus installed is by going to developer’s website (Kaspersky Lab) and downloading the software using provided links.

Step 2. Update Kaspersky Anti-Virus to the latest version

If you already have Kaspersky Anti-Virus installed on your systems and KDZ files are still not opened properly, check if you have the latest version of the software. Software developers may implement support for more modern file formats in updated versions of their products. If you have an older version of Kaspersky Anti-Virus installed, it may not support KDZ format. The latest version of Kaspersky Anti-Virus should support all file formats that where compatible with older versions of the software.

Step 3. Associate Kaspersky Virus Bases Format files with Kaspersky Anti-Virus

If you have the latest version of Kaspersky Anti-Virus installed and the problem persists, select it as the default program to be used to manage KDZ on your device. The process of associating file formats with default application may differ in details depending on platform, but the basic procedure is very similar.

Change the default application in Windows

• Choose the Open with entry from the file menu accessed by right-mouse clicking on the KDZ file
• Select Choose another app → More apps
• To finalize the process, select Look for another app on this PC entry and using the file explorer select the Kaspersky Anti-Virus installation folder. Confirm by checking Always use this app to open KDZ files box and clicking OK button.

Change the default application in Mac OS

• From the drop-down menu, accessed by clicking the file with KDZ extension, select Information
• Proceed to the Open with section. If its closed, click the title to access available options
• From the list choose the appropriate program and confirm by clicking Change for all....
• A message window should appear informing that This change will be applied to all files with KDZ extension. By clicking Continue you confirm your selection.

Step 4. Check the KDZ for errors

If you followed the instructions form the previous steps yet the issue is still not solved, you should verify the KDZ file in question. Being unable to access the file can be related to various issues.

1. Verify that the KDZ in question is not infected with a computer virus

If the KDZ is indeed infected, it is possible that the malware is blocking it from opening. Scan the KDZ file as well as your computer for malware or viruses. If the KDZ file is indeed infected follow the instructions below.

2. Check whether the file is corrupted or damaged

Did you receive the KDZ file in question from a different person? Ask him/her to send it one more time. During the copy process of the file errors may occurred rendering the file incomplete or corrupted. This could be the source of encountered problems with the file. It could happen the the download process of file with KDZ extension was interrupted and the file data is defective. Download the file again from the same source.

3. Ensure that you have appropriate access rights

Some files require elevated access rights to open them. Log out of your current account and log in to an account with sufficient access privileges. Then open the Kaspersky Virus Bases Format file.

4. Check whether your system can handle Kaspersky Anti-Virus

If the system is under havy load, it may not be able to handle the program that you use to open files with KDZ extension. In this case close the other applications.

5. Check if you have the latest updates to the operating system and drivers

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with Kaspersky Virus Bases Format file. It may be the case that the KDZ files work properly with updated software that addresses some system bugs.

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