Good resource to consider:
http://www.everydaylinuxuser.com/2014/05/install-ubuntu-1404-alongside-windows.html
My problem with it was the requirement to remove secure boot. Indeed this is not necessary these days and could actually cause trouble in the partitioning phase.
http://askubuntu.com/questions/458947/should-i-create-the-reserved-bios-boot-area-partition
http://askubuntu.com/questions/223177/how-much-space-i-should-use-for-ubuntu-which-partitions
http://www.everydaylinuxuser.com/2014/05/install-ubuntu-1404-alongside-windows.html
My problem with it was the requirement to remove secure boot. Indeed this is not necessary these days and could actually cause trouble in the partitioning phase.
http://askubuntu.com/questions/458947/should-i-create-the-reserved-bios-boot-area-partition
http://askubuntu.com/questions/223177/how-much-space-i-should-use-for-ubuntu-which-partitions