Once installed, you can run OpenVPN GUI from the Start Menu.
On Windows 7 and 8, you must right-click on the icon and choose "Run as administrator".
Once you have run OpenVPN, you will see the OpenVPN GUI icon and a disconnected network connection in your system tray. Right-clicking on the OpenVPN GUI icon gives a few basic options:
On Windows 7 and 8, to avoid having to choose "Run as administrator" each time, you can right click on the OpenVPN GUI icon and choose Properties. Select the Compatibility tab and then click on "Change settings for all users". Tick the "Run this progam as administrator" box and click OK on each window to close.