1

I had a working dual boot system of Windows 10 Pro / Kali Linux. After a memory upgrade I decided to upgrade the Win 10 from 32 bit to 64 bit which requires a clean install of Windows. I no longer get a dual boot option - Windows starts by default. My Kali partition is still there and I do not want to reinstall, reconfigure, and reload the security and pentesting apps. Is there an easy way to restore the dual boot option?

2 Answers 2

1

If you are using a UEFI boot system;


You could try installing reefind. It can be installed from windows and will, most likely, find your kali partition.

The installation page recommends www.easyuefi.com/index-us.html.

The original page; http://www.rodsbooks.com/refind/installing.html


If you are using a legacy boot system;


  1. Boot the machine using a Live CD.

  2. Open a terminal.

  3. Find out the name of the internal disk by using fdisk to look up the device's size. For example:

  4. sudo fdisk -l

  5. Install GRUB boot loader onto the proper disk (the example below assumes it is /dev/sda):

  6. Grub-install --recheck --no-floppy --root-directory=/ /dev/sda

Ref; xernicus on this post


Finding Boot system


Running msinfo32 will tell you the boot system somewhere on the first page.

1
1

Now, for you, you have one beautiful options: For you, just you have to update and upgrade grub, For it, Just simple go in live O.S (just like from usb) In it, Open a terminal, and add the Boot Repair PPA

$ sudo add-apt-repository ppa:yannubuntu/boot-repair && sudo apt-get update

Install Boot Repair

$ sudo apt-get install -y boot-repair && boot-repair

Update the GRUB 2 configuration file

$ sudo update-grub

Reinstall GRUB 2 to the drive's MBR or equivalent

Install to the drive, not to the partition. Example: sda, not sda1

$ sudo grub-install /dev/sdX

Inspect the GRUB 2 configuration file. The default is /boot/grub/grub.cfg

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .