1. You need to download
the OpenVPN Client for Windows 8.1 from official website.
2. Run the setup with administrator privileges, and then follow the installation steps. Confirm the Windows security messages.
and Download configuration file .OVPN from your Profile Page
Copy file to the OpenVPN configuration folder (by default C:/ProgramFiles/OpenVPN/config/).
4. Start OpenVPN and click with right on the OpenVPN tray icon, select your favorite location and then click on Connect.
5. Once the connection has been successfully established, the OpenVPN icon turns green.