Is that pissible to setup openvpn on a vps server with windows 2012 r2 for a smart phone client with ios?

I have recently hired a vps server with windows server 2012r2 as the operating system. The servers IP is from a different country. I wondered if I could use the server as a vpn channel to connect to and access the Internet from my ios device so that I can bypass regional ip filtering. I’ve heard that it could be possible through installing and configuring openvpn on the server. From the following tutorial I was able to proceed with the installation and configuration steps.

However when it comes to run the vpn server I encounter error regarding TAP windows adapter not found. Its icon is actually available in network connections and it is enabled. But it is not connected. Upon the explanation above I have two questions. Firstly is openvpn the easiest and best approach to achieve the goal I declared!? The second question is that how can I further dig into the TAP windows adapter v9 problem and find a solution?!