For info, Wifi driver we're using is Intel PROSet Wireless 15.2 and WiDi is supporting on these models of laptop. We install all of the other drivers before the WiDi one and reboot to ensure it has all of it's prerequisites, and it still doesn't work. All the other drivers for the devices work fine apart from the WiDi driver. We've downloaded the latest Intel WiDi drivers (3.1.29) for our Lenovo T430 and X230 laptops.