I had a pre-installed Windows 10 in my Laptop. I had decided to install Ubuntu 18.04 by creating a partition in the single hard disk. Everything worked like a charm for two months without any problem. I had the boot menu that would allow me to select between Windows 10 and Ubuntu.
Last week on a fine day, after I shut down my computer and switched it back on, selecting Ubuntu showed grub failure screen. It was not loading Ubuntu at all. Then I decided to use boot-repair which automatically did some recommended repairs. Now, the issue is that the boot menu is no longer available and the system boots directly into Windows 10.
I am not sure if this is relevant but many solution involved UEFI mode for BIOS, but I have come to know that upon typing msinfo32 in Run Command in Windows 10, it shows the BIOS mode as "Legacy".
I made a bootable Ubuntu USB and entered Ubuntu using "Try Ubuntu". The hard disk portion where I installed Ubuntu i.e. /dev/sda6 is still available. I am not sure if it's corrupt.
I tried implementing "bcdedit" as well but still it's going directly into Windows 10.
I was hoping if someone can help me with this issue.