i'm having a problem regarding booting into Ubuntu, more exactly Grub 2 bootloader, after a Windows 10 installation followed by Ubuntu 16.04, on the same SSD hard-drive, only different partitions. After installing Windows 10 i've disabled Secure Boot from BIOS and hibernation & fast startup from Windows 10. Still, after installing Ubuntu with manually created partitions for root, swap & home, the Grub 2 won't start; still boots into Windows 10. Also, if i'd use EasyBCD in Windows, i can't create Ubuntu option for boot/install Grub. I don't know what i did wrong. There are like 100 tutorials for installing Windows 10 + Ubuntu but it seems that all are mostly the same. Maybe i should select Windows's Boot Manager's partition as Device for Boot loader installation (see the attached picture)? Thanks!

[Ubuntu disk manager](https://i.stack.imgur.com/CHlPn.jpg)

[EasyBCD EFI error](https://i.stack.imgur.com/RksXy.png)

[Windows bootloader](https://i.stack.imgur.com/Ww6Mi.jpg)

Later edit: after following this steps (<https://ubuntuforums.org/showthread.php?t=2291335&p=13341757#post13341757>) now i'm able to select Grub2's bootloader at boot, but after booting into Ubuntu, i get some errors (see the 3rd picture). However, if i don't press F12 at boot, it boots into Windows, despide i've put Ubuntu 1st at boot priority in BIOS (first picture).

[Ubuntu's options to boot from in BIOS](https://i.stack.imgur.com/uJiOB.jpg)

[Grub2 bootloader's options](https://i.stack.imgur.com/W7M49.jpg)

[Errors when booting into Ubuntu](https://i.stack.imgur.com/T955H.jpg)