How can I add windows 7 to boot in Grub2 manually?

[zorrohere]

I had windows 7 at sda1 and windows 8 at sda9 but after installing Kali and grub2 my windows 8 is being detected at sda1. So how can I add windows 7 to grub manually?

[duxim]

first try from Kali this command
update-grub
if it is successful then ok.
if it is not then you have to boot to Windows system and download this tool
http://neosmart.net/EasyBCD/
and first fix windows 7 and windows 8 to boot (w/o Kali).
After that download another tool
http://sourceforge.net/projects/boot-repair/
and this will repair and install grub and you will get all 3 system

[zorrohere]

After using EasyBCD will I lose access to Kali boot?

[duxim]

After using EasyBCD will I lose access to Kali boot?

yes. you will lose it. but in this step is primary to get both windows to boot, because it is easier to do this way.
after that, when you establish both windows to boot use second tool or any live Linux distro just to install grub loader.
after that you will get all 3 systems.

[duxim]

P.S. in this case after you install grub in grub will only appear 2 entries,
one for Kali and one for Windows Vista loader.
when you select windows vista loder to boot, then will be appear Windows dual boot screen and from there you will
chose what to boot.