n my Lenovo G50-70, I am in the (painful) process of installing Linux Min v17.3 (Rosa). It's being a bumpy road up to now.The install using UEFI BIOS config did work but no multiboot option was provided, i.e grub worked once and as soon as I chose Windows 10 from that moment always Windows 10 was booted without grub options.I changed in my BIOS the UEFI boot to Legacy Support and installed again, using the option Install alongside Windows. Secureboot and Fastboot were disabled. This attempt has created a grub menu at the beginning, but none of the Windows options work, (I only have installed Windows 10, it refers to it as Windows 8.1).I tried:Unable to boot into Windows after installing Ubuntu, how to fix?(first response from Jordan Uggla) but it did not work. I tried to install boot-repair and found that I could not open my Firefox in Linux Mint, (solved it using https://linuxnorth.wordpress.com/2014/06/06/firefox-doesnt-start-in-linux-mint-17-solved/ ) but also my wireless connection decided to stop working without any particular reason, and I still working on that one to fix it).Also, if I switch my BIOS from Legacy Support to UEFI I can boot Windows 10, (thanks god), so I am doing a recovery disk to protect me of further havoc, although it is pretty clear that the problem is at the boot areas. I would like to be in Legacy Mode and be able to boot either Linux Mint or Windows 10. I am not sure I want to touch anything about UEFI to ensure I can have my Windows 10 working... I have also tried to use Windows EasyBCD but does not work, (it says UEFI prevents to make changes, regardless of whether I configure my BIOS.)Can you please let me know how to ensure my boot is working for both OS? Any help much appreciated.I will try to update my question with the info from my disks, once I resolve the issues with my wireless card.EDIT: info from boot-repair :   http://paste2.org/mEJpjD54
Boot issues after installing Linux Mint 17.3 Windows 10 does not boot
linux mint;windows