Coming in early 2017, PowerDVD software will support UHD Blu-ray on PC - assuming hardware compatibility.
http://www.guru3d.com/news-story/po...r-first-ultra-hd-blu-ray-playback-for-pc.html
http://www.guru3d.com/news-story/po...r-first-ultra-hd-blu-ray-playback-for-pc.html