Not showing GRUB in windows 10 dual boot

So, I decided to try installing ubuntu 16.04.1 on my Windows 10 computer, and attempting to do a dual boot. This issue seems pretty common, but for some reason I just cant get the friggin GRUB menu to show up at all; it just boots me right into windows 10.

I've turned off Fastboot, and tried to turn off secureboot but couldn't find it in my BIOS lol.

I tried booting from the live USB into ubuntu, and running

sudo grub-install

but all that did was throw up an error message.

I also tried switching between legacy and UEFI booting in the BIOS, that also didn't do anything. I remember when I installed ubuntu it asked something about UEFI, and how things might go bad if I installed it in that mode, so maybe I should go reinstall ubuntu in UEFI? Or will that actually break stuff?

So I'm a total noob and have no idea as to what I'm doing... Any help please? :P

Edit: I've figured out that windows is in BIOS mode, not UEFI. I reinstalled ubuntu onto my drive partition, making sure that it is in non-UEFI mode, and got the same result: No GRUB. I messed around in my BIOS's boot order, but all it gave me was the option to boot from either of my two hard discs.

Edit 2: Boot-Repair log

Solution 1:

Try running boot repair when you are on Ubuntu or boot into ubuntu from a LIVECD.. It fixed the issue of grub not working in my case : Follow this: https://help.ubuntu.com/community/Boot-Repair