GRUB Not Opening on boot

I recently tried to dual boot Kali (Many times) and my problem at the moment is that the GRUB won't open upon booting up my PC
I've enabled secure boot and disabled legacy in the BIOS and also disabled fast boot with the CMD on my Windows 10 machine but nothing helped.

I tried fixing the GRUB with:
mount /dev/sda3 /mnt
mount --bind /dev /mnt/dev
mount --bind /dev/pts /mnt/dev/pts
mount --bind /proc /mnt/proc
mount --bind /sys /mnt/sys
chroot /mnt
grub-install /dev/sda
update-grub
exit
umount /mnt/dev/pts
umount /mnt/dev
umount /mnt/proc
umount /mnt/sys
umount /mnt

However upon typing mount --bind /dev /mnt/dev it would tell me that the mount point /mnt/dev could not be found.

I haven't been able to find a solution and I could really use some help, thanks for your consideration in advance