Can't boot into Win 10 after installing Kali to seperate partition

[Cozen]

I installed Kali using a live usb on a system with Windows 10 already installed. I used gparted to shrink the windows partition and used the new unallocated space to install kali. In the setup process it did not detect the windows os, and now grub only shows kali. I have tried several tutorials on how to add windows 10 to the grub menu, but every time it says invalid signature when choosing that menu option. The below output shows a EFI partition and a BIOS partition, could that be an issue?


root@cozen:/sys/firmware# fdisk -l
Disk /dev/nvme0n1: 465.8 GiB, 500107862016 bytes, 976773168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 146D170B-D979-4E58-8715-7AE847B58362

Device Start End Sectors Size Type
/dev/nvme0n1p1 2048 923647 921600 450M Windows recovery environment
/dev/nvme0n1p2 923648 1126399 202752 99M EFI System
/dev/nvme0n1p3 1126400 1159167 32768 16M Microsoft reserved
/dev/nvme0n1p4 1159168 869885951 868726784 414.2G Microsoft basic data
/dev/nvme0n1p5 975153152 976771071 1617920 790M Windows recovery environment
/dev/nvme0n1p6 869885952 869887999 2048 1M BIOS boot
/dev/nvme0n1p7 869888000 941840383 71952384 34.3G Linux filesystem
/dev/nvme0n1p8 941840384 975153151 33312768 15.9G Linux swap

Partition table entries are not in disk order.


Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 4B8CD7F6-52CE-4095-80CE-E9B5D3730872

Device Start End Sectors Size Type
/dev/sda1 2048 1953523711 1953521664 931.5G Microsoft basic data

[_defalt]

Did you changed the Boot settings to a useless option Legacy BIOS before installing kali?

[Assassin99]

HI,
I had the same issue, to resolve this problem use Boot- Repair

The easiest way to use Boot-Repair is to create a disk containing the tool (eg Boot-Repair-Disk, a disk starting Boot-Repair automatically), and boot on it.

Remark : it is recommended to install the ISO on a live-USB (eg via UnetBootin or LiliUSB or Universal USB Installer). Do not burn it on a DVD if your computer has Windows8 pre-installed, or if your boot is in EFI mode.

For further guidance visit: https://help.ubuntu.com/community/Boot-Repair
This is the best way :)