How to Fix the "Dokan Not Installed" or "Dokan Version Not Supported" Error?

Updated on June 13, 2025 by Admin to Free Windows Backup Software

This tutorial describes how to fix "Dokan not installed" or "Dokan version not supported" errors that occur when mounting the file backup images generated by Hasleo Backup Suite Free. The main contents are as follows:

What is Dokan?

Dokan is an open-source library that enables developers to create userland filesystems on Windows. It allows them to easily develop their own filesystems without requiring deep knowledge of kernel and driver writing knowledge, thereby reducing the difficulty of development and the risk of system crashes from driver problems. For more information about Dokan, please visit: https://github.com/dokan-dev/dokany

Why does the "Dokan not installed" or "Dokan version not supported" error occur?

Dokan is used by Hasleo Backup Suite to implement HVFS (Hasleo Virtual File System) for mounting file backup images. If Dokan is not installed or an incorrect version is present, you will encounter one of the following errors: "You don't appear to have the Dokan installed yet, please install it." or "The version of Dokan you have installed is not supported." when trying to mount the file backup images.

Dokan not installed error
 

 

Tutorial to Fix the "Dokan Not Installed" or "Dokan Version Not Supported" Error

Step 1. Download Dokan V2.1.0.1000. Here is the official download link:

Official download

Alternatively, you can download it from our website:

Local Download

Step 2. Double-click DokanSetup.exe to start installing Dokan and follow the prompts to complete the installation.

install Dokan
 

Step 3. After completing the installation of Dokan, you will be able to successfully mount file backup images.

file backup image mounted
 

Conclusion

This tutorial describes how to fix the "You don't appear to have the Dokan installed yet, please install it." and "The version of Dokan you have installed is not supported." error when using Hasleo Backup Suite.