how to recover grub loader in linux after installing windows?

Dual booting is quite helpful if you have plenty of disk space to spare .It provides advantage over virtual OS hosting in your system you don't have to compromise over your quality.If you want to play games you can switch to windows or you want to do something efficient or like say you want to code then you can switch to linux.

But it seems sometimes that after installing any Linux distribution along side windows the grub is messed up every time you try to boot you are welcomed with a blank screen and you end up with Linux.So there is a way to recover the grub.


Please follow the  instructions

Open the terminal

Find out where do you want to install the GRUB

Use the fdisk -l command on the terminal

Next use the ls command 

Next step mount the partition where you want to install the GRUB
 

lets say you want to mount it on the sda5 partition so
use the command sudo mount /dev/sda5 /mnt

Now mount the partition to an alternate location

Command
sudo mount /dev/sda5 /mnt/boot

Now  create and unbreakable link from the dev folder to the live image


Command to use is  sudo mount --bind

Next use the sudo chroot command

Now after doing that use the ls command

Next reinstall the GRUB boot loader to the dirve
command to use is

sudo grub-install

Now exit the chroot shell

Next  unmount all the partition using sudo umount


Now reboot the system using sudo reboot command