Hi, I need your help. I started my computer, but I only see a black screen with grub prompt. Then, I found out about the tool, Boot-Repair, so I tried running it (with recommended configurations) from Ubuntu live USB, but it looks like the tool is not able to find the original Ubuntu installation? I use EFI, and Secure Boot is disabled. I am so dead, and have no clue what to do... Please help me out.... Here is the report I got from boot-repair tool: