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How to update Grub after deleting Ubuntu partition?
Solution: 1 Turn on laptop and boot into Ubuntu OS. 2 Launch the command Terminal (Ctrl+Alt+T) from Ubuntu. 3 Type in the command in the terminal window: sudo update-grub. 4 Hit Enter Key. 5 Type in your sudo password when prompt to execute your command.
What to do if Ubuntu boot grub is not installed?
Burn the iso into the USB with Rufus. Boot from USB, click Troubleshooting, then Command Prompt, and type: Windows will start normally without Ubuntu’s GRUB. You can reinstall Ubuntu again. then follow the section 2nd option : install Boot-Repair in Ubuntu from this link: I did the same thing.
How can I remove Grub from my computer?
To remove GRUB just download Windows 8 or 10 from another PC. Burn the iso into the USB with Rufus. Boot from USB, click Troubleshooting, then Command Prompt, and type: Windows will start normally without Ubuntu’s GRUB. You can reinstall Ubuntu again.
Why is Windows 10 not showing up in Grub menu?
There might be cases where even when you still have both OS on your laptop. In this case, both Ubuntu and Windows 10 partitions are intact. Still, you may face the problem, since the Grub menu doesn’t show the Windows boot option. In such cases, there is quite a simple fix to bring back Windows Boot Option into the OS Selection menu:
Can a GRUB2 boot to a second hard disk?
GRUB2 only boots to Ubuntu (on 1st hard disk, in my example). Issuing update-grub does not detect the operating system on the 2nd hard disk, but I know there is one.
How do I update Grub file in boot?
Once you’ve confirmed that /boot/ contains the correct files, meaning that it is the correct location, type: This should rebuild your /boot/grub/grub.cfg file with the menu entries. At this point you may want to check that things were correctly updated.
Why does grub not show Windows boot option?
Still, you may face the problem, since the Grub menu doesn’t show the Windows boot option. In such cases, there is quite a simple fix to bring back Windows Boot Option into the OS Selection menu: Both Ubuntu and Windows Partition exist on the hard disk. Both OS are not corrupted. Not Showing Windows boot option in the bootloader list.