i bought this new notebook (Acer E5-573G-58B7) with Windows 10. I'm trying to install Ubuntu and make a dual boot, so I followed this steps:
Download Ubuntu 14.04.03 LTS;
Use one USB to make a boot device;
Shrink my HD with other partition to install Ubuntu;
Restart Windows and boot on USB;
Install Ubuntu in the partition made before;
Untill now, no problems. The problem comes now.
When i restart my notebook it just go right to Windows, without GRUB or something, i searched a lot, and already disable SECURE BOOT and everything. And even if i hit F12 when computer starts to boot menu, that screen doesn't show the Ubunutu partition to select and i cant choose Ubuntu to start anyway.