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Earlier I had dual boot with windows 10 and kali linux. Boot menu was displayed by kali. I reinstalled windows 10 due to some issue but now system directly boots to windows 10. No boot menu is being displayed. I tried to enable boot menu from cmd. After restart windows boot menu was displayed with 2 options- Windows 10 and Fast Mode.

I think that after reinstalling windows 10, mbr was replaced by windows 10. This can be a reason why kali is not showing in boot menu. I tried searching for a solution but didn't find anything helpful.

Any suggestions on how to solve this pls?

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The easiest way is to boot into Linux (I prefer GRML from grml.org booted from an USB drive) and to re-install the boot menu from there:

  1. boot into GRML
  2. mount the KALI partition, e.g. to /media/username/kali
  3. bind-mount some system directories: for dir in proc dev sys ; do mount -o bind /$dir /media/username/kali/$dir ; done
  4. chroot into KALI Linux: chroot /media/username/kali
  5. re-install the Grub menu: update-grub
  6. it may be necessary th write the bootloader: grub-install /dev/sda (the name of the SD/HDD with Kali/Windows)
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  • Thanks for answering. I used boot-repair-disk on live usb, it worked. If you don't want to go into terminal and commands then this is the best option.
    – avm
    Commented Feb 22, 2022 at 11:33

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