In this video, I will show you how to pair the FC30 Pro Controller from 8Bitdo to Windows 8.1 and iOS 10.3.2. The process is very similar for Android and MacOS, and they should be easier to pair with.
Here is the download link for JoyToKey, which is a simple, free, and safe program that will allow you to set keys from your keyboard to any controller detected by Windows.
For Windows Only: http://joytokey.net/en/download
Serial Key in Case of Trial Period: VTKY-SLV3-VWML