1) Open your client.ovpn file and add the following two lines to the bottom of the file:
route-method exe
route-delay 2

2) Create a shortcut to your OpenVPN GUI file. Right click the shortcut and click properties.
Under the ‘Shortcut’ tab.
Click ‘advanced’.
Check the box that says ‘Run as administrator’ and
then Click ‘OK’ and ‘OK’ again.