Ubuntu 14.04 and Windows 8.1 dual boot, boot menu not appearing after windows "refresh". Looking for help in getting dual boot capability back - Ask Ubuntu
Install Ubuntu 14.04 alongside Windows 8.1 in 10 easy steps « Everyday Linux User
Problem dual booting windows 8 and ubuntu 14.04 - Unix & Linux Stack Exchange
Dual-Boot Ubuntu 14.04 and Windows 8 [2015] - YouTube
Dual boot windows 7 and Ubuntu 14.04 | shakeel osmani