0
  1. Recently I was trying to remove dual boot from my PC, I was using Linux as well as windows but later I wanted to use it as standalone Windows PC.

  2. So I deleted the partition were my Linux system is present through windows disk management and tried to extend the volume but was not a successful attempt. In order to fix the grub bootloader I should have restarted the PC by pressing the shift key twice but later I realized I didn't do the same. Then when I turned on the PC it was throwing grub rescue msg error.

  3. After that I thought there might be some solution on internet for the issue, but those were basic ones, since in those you were able to find the windows boot manager and locate it.

  4. But here in my case, I am not able to find any boot managers in any of my partition Also I tried with external bootable drive, there I found that my kernel is not working properly throwing BOSD error due to sudden power cut, the PC was shutdown during restart. grub rescue> ls (hd0,msdos7) error: unknown filesystem

7
  • If it was me I would be booting from a Ubuntu live media and using gparted to remove all partitions. Do not make any new ones. Boot from Windows install media and do an install as if it was a new hard drive.
    – David
    Oct 16, 2021 at 13:13
  • Note: This might be a better question for Super User site. Before resorting to a full Windows reinstall I would try to install the Windows Boot Manager first. There are lots of instructions to do this. For example: thewindowsclub.com/rebuild-bcd-windows-10 Oct 16, 2021 at 13:22
  • Assuming Windows is still installed, and it sounds like it is, you need to fix its boot process as suggested above. Why would you expect grub to still work when you have deleted your Linux partition?
    – PonJar
    Oct 16, 2021 at 15:01
  • @PonJar I have Windows installed as you mentioned but as I mentioned I tried to delete the linux partition first and fix it by command prompt in the recovery mode
    – Savy Tech
    Oct 17, 2021 at 17:01
  • I would have thought it was obvious that by deleting your only Linux partition you would be deleting important parts of the grub boot software, but perhaps not.
    – PonJar
    Oct 17, 2021 at 20:21

0

You must log in to answer this question.

Browse other questions tagged .