boot-repair it not detecting windows and hence no grub menu item for booting windows

I have problems getting kubuntu installed and dual boot together with windows 10. I have two disks one for windows and one kubuntu. I would like to have grub installed on the kubuntu disk and have it dual the windows.

Boot-repair gives this output:

I have tried the os-prober, grub update and boot-repair but none of them gives a installation that produces a grub menu item to boot windows. If I change my bios to boot the windows disk it works fine. Booting the ubuntu goes fine from the disk with grub/kubuntu.

It looks like I need the boot-repair to find my windows installation before I can get this to work. But how?