I recently purchased an Acer Aspire TC-780-EB13 and can't boot an alternative operating system on it. I installed Ubuntu alongside Windows 10, and it won't show Ubuntu in the boot menu. I tried booting it from the Windows Recovery Environment, but then it says that this boot device is disabled in the BIOS. I looked everywhere in the BIOS, and there is no option to add a trusted EFI file. The BIOS is the preloaded one. Help me!
Update: Posted this in the Windows 8.1 section. Oops.