Why does GRUB bootloader not see Windows?

Question

linux

Installed Kali Linux along with Windows on one disk.
Bottom line:
In the GRUB bootloader, you can only select Kali Linux, I did not clean the disk with Windows.
It is impossible to load Windows shorter.
What to do, please tell me.

Answer 1

Helped me get Windows 10 x64 back after installing Ubuntu 17.10 over Win10 on the same drive.
-> Boot from LiveUSB - in my case Ubuntu 17.10 (trial mode)
sudo add-apt-repository ppa:yannubuntu/boot-repair
sudo apt-get update
sudo apt-get install boot-repair
y
boot-repair
after installing grub-customizer and through it set priorities and boot order.
alternatively, you can change grub.cfg by hand
cd /boot/grub
sudo gedit grub.cfg
search windows
remove duplicates or unnecessary boot options