I have an ASUS x451CA notebook bought for work reasons. I have Win10 installed and I want to have a dual boot machine.
My installation of Windows 10 was completed with no issues, but when I installed Ubuntu my nightmare began.
First, my BIOS only recognizes the bootable usb I made with yumi in legacy mode; a UEFI option to boot appears, but when I select it it doesn't boot, I just get brought back to BIOS.
My notebook has no secure boot nor fast boot enabled, much less these options exist in BIOS. I disabled the legacy mode wile I'm in BIOS. It let me choose the UEFI option, but when the system restarts I'm brought back to the BIOS menu. The legacy mode install of Ubuntu runs without problems, but I'm blocked from entering Windows, the system wont find it in the GRUB menu.
Trying to solve this problem I installed boot repair, but the program says that it can fix GRUB only in UEFI mode, which I can't enable.
On my PC I have a dual boot with Win10 and Ubuntu 18.04, but in my PC I have 2 HDs where one runs a boot file separately that runs perfectly. But not in my notebook with only one HD.
How can I solve this problem?