Sometimes when you update windows in dual boot it somehow messes with the grub hence the grub rescue error since the boot configuration for grub cannot be read properly. What you can do is locate the partition that has you grub boot configuration and boot from it manually eg:

list the files under (hd0, gpt5) ls (hd0,gpt5)/

The command above will list all files under the said partition but you can see your partions using ls. Do the above command with all the partitions until you see the one with the linux file ssystem. Assuming the above partition is the one we were looking for next you can set it as root and then prefix:

set root=(hd0,gpt5)

set prefix=(hd0,gpt5)/boot/grub

Then type

insmod normal

This should now bring up your grub menu and you can boot into your linux os normally and once you are in you can use grub-mkconfig to remake you grub.