I have tried every method there was out there on the Internet.
I have inserted the line protocols h2 http/1.1, protocols h2c http/1.1
And enabled the module http2, but nothing happens. I am using Firefox and with ssl enabled but http2 does not show up on the network tab in Firefox.
With latest version of xampp as of today, Apache 2.2.17.
Mozilla Firefox 42.0
PROBLEM SOLVED, DELETED LINE PROTOCOLS H2 HTTP/1.1