I have a dumb problem that I'm hoping that someone can point me in the right direction on. I'm trying to install ubuntu 16.04.1 on a windows10 machine. I've followed all the steps correctly (I think) all the way up to the point where I am supposed to go through the install program on the thumb drive. The first problem is that it does not show the option screen that has the partition the hard drive options (see here: http://www.tecmint.com/wp-content/uploads/2016/04/Select-Ubuntu-16.04-Installation-Type.png). The next page (here:http://www.tecmint.com/install-ubuntu-16-04-alongside-with-windows-10-or-8-in-dual-boot/) only shows that my "device for boot loader installation" is the thumb drive itself.

I'm confused. I've made sure that there is in windows a free partition with no drive assigned and every other step up till the point where I reach this dead end I've followed correctly seemingly. Can anyone tell me what's going wrong?