I have a lenovo yoga 900 with windows 10 pre-installed in a 250GB SSD hard drive. I am trying to install Ubuntu 16.04 alongside windows. I am using a bootable USB stick and have selected the option "Try Ubuntu" in order to create a new partition for my Ubuntu installation. However, gparted only recognizes two partitions of size 4.1MB and 14.9GB as shown in the picture
The problem is that I cannot see the 250GB space.