Overview

While installing Kerio Control VPN client using Windows 10 OS, the installation fails with the following warning:

Error 28201. Failed to install VPN device driver. Command: Create. Action: UpdateDevice. Result: 0x80070490, unspecified error

Prerequisites

Windows 10 build 2004

Kerio Control VPN client 9.3.4

7zip app installed

Diagnosis

The latest Windows 10 version contains new Security policies regarding Driver signatures and Security. For more information, please refer to Microsoft's article.

The current Kerio VPN driver is not compatible with Windows 10 May 2020 Update. It is causing the installation wizard to fail. The Engineering team released a new Beta version of Kerio Control VPN client that can be found in the attachments below.

Solution

Navigate to the folder where the Kerio VPN installer was downloaded, i.e.
Windows Temp folder - C:\Users\<username>\AppData\Local\Temp\{D5A12C06-B51E-43F7-A1E9-5EF9FE8DFC80}
Note: hash number will be different
Extract the Kerio VPN installation files using the 7-zip tool.
Install the kvnet driver by right-clicking and selecting Install option.
Confirm the installation by clicking Yes.
Once the Successful operation window appears, click OK.
Run the Kerio VPN installation wizard again.