I recently installed Kali Linux on my windows 7 computer with the intention of being able to double boot. When I installed Kali, I had to install it in UEFI mode, because that was the only thing that worked. Upon booting the GRUB loader shows, but only Kali is on the list. I have tried various things to fix this, but nothing works. I was able to add an entry to the list by using sudo grub-install /dev/sda1 (which is where my windows loader is located) but I was unable to boot into it when selecting it from the menu. I got an error like "no UEFI found" or "invalid UEFI" or something like that.

I am wondering if windows 7 even supports UEFI at all, if it does, do anyone know how I can add it to the GRUB list?