Download last version of OpenVPN (file Installer with extension .exe).
Start OpenVPN installation and Allow the application to make changes.
Install program by default.
Leave all the settings by default.
Allow install OpenVPN driver.
Complete the OpenVPN installation for Windows 10.
Run OpenVPN app.
OpenVPN has created folder for OpenVPN files.
In the "My Account" download OpenVPN files and extract the Zip archive to the Desktop.
Copy OpenVPN files from the Desktop to a folder:
C:| Users | (User name) | OpenVPN | config
Connect to the OpenVPN server in Windows 10.
Connection is successfully established.