grub menu not showing in dual boot Linux mint 17 & windows 10

Question

I know that this is a common problem but my situation is a bit different. I had a perfectly working Linux Mint 17.2 and Windows 10 in dual boot with grub menu showing and giving me options on what to boot for weeks now, but then I wanted to boot into BIOS but I forgot what key will let me go into the BIOS so I just randomly pressed all the functions keys and something appeared on the screen but it was too fast for me to read then it went into BIOS. I didn't touch anything in the BIOS and after exiting it booted directly into Windows 10 and I haven't booted into Linux ever since.

Things I've tried:

• I tried changing the boot options(F12) but ubuntu wasn't listed there
• Turned off fast boot and hibernate in Windows 10
• bcdedit in windows
• Manually reinstalling grub by following the answer here https://askubuntu.com/questions/683108/grub-menu-not-showing-at-boot
• Booted into a live mint 17.2 and did boot-repair

Here is my boot-repair boot info http://paste2.org/pMP8E2WY

I just remembered after exiting bios and as it booted into windows 10 there were updates so maybe that update could have killed my grub.

Solution

I solved my own problem.

I opened command line in windows as admin and typed this command. bcdedit /set {bootmgr} path \EFI\ubuntu\grubx64.efi. Then shut down not reboot (I don't know if this matters though) then I was welcomed by the very familiar grub menu :)

I swear that I have tried this already but I tried it before I did the boot-repair so maybe that could have been one factor why this time it worked and also maybe shutting down instead of rebooting after the bcdedit

Comments

[phk]

Similarly it's like the solutions presented in in threads such as: askubuntu.com/questions/667484/…

[Pius Lee]

I know it's not encouraged to write +1 comments, but Sir, you saved me several hours of painstaking search for a solution to this problem. Thank you for this!