GRUB not loading after Windows 10 reinstall

Question

I have recently reinstalled windows 10 in my Ubuntu/Windows dual boot laptop. After that, GRUB bootloader is not loading up. It straight goes booting up the Windows.

I saw a couple of blogs suggesting boot-repair. I did that and it's still not loading. Help.

I solved same problem recently in my desktop by reinstalling grub. — BlueManCZ, Apr 18 '17 at 17:10
You must boot some live Linux disto and mount your partition manually, install GRUB to it (according to previous link), then reboot computer and GRUB should work. — BlueManCZ, Apr 18 '17 at 17:21
I exactly did that. Did a boot from a usb stick, used gparted to identify the partition and then tried to mount that. It gives out an error "not a valid partition". — Souparno Adhikary, Apr 18 '17 at 17:27
It is. I checked it using the gparted. It's an ext4 partition with a Ubuntu 17.04 installation. That's why I'm so curious to know what's going on. — Souparno Adhikary, Apr 18 '17 at 17:58

score 0 · Answer 1 · answered Apr 18 '17 at 22:48

sorry for my bad english! :) it is because when you install windows after linux(ubuntu) the windows loader takes places on the hard disk, to do: It consists of booting thanks to Super Grub2 Disk. Once in your system you will recover GRUB with a simple command. http://www.supergrubdisk.org/ download this file and then boot then in a usb or disk, then boot this from the boot options or bios then in the super grub2 select:

Detect any os your Ubuntu (you have to select it from the list of detected OS) Once you have started in your distribution you will open a console and load the Grub in the MBR by executing the following command:

Grub-install / dev / sda when sda is your hard disk!

if you want to read this in spanish and more detailed, http://www.guia-ubuntu.com/index.php/Recuperar_GRUB

GRUB not loading after Windows 10 reinstall

1 Answers1