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I want to uninstall Ubuntu from my laptop as well as GRUB bootloader. My laptop is currently dual-booting windows 10 and ubuntu.FYI I don't have any windows installation disk. Is there any way I can completely remove Ubuntu as well as grub bootloader? Thanks a lot for your feedback, I really appreciate it.

  • This might help ... http://superuser.com/questions/949219/how-to-fix-windows-10-boot-loader-from-windows – pfeiffep Jun 12 '16 at 18:16
  • If you have BIOS/MBR install, then answer below works. If you have UEFI, you just need to choose to boot Windows by default in UEFI settings. And you can remove UEFI NVRAM settings & /EFI/ubuntu folder: Uninstall Ubuntu from menu, Really UEFI boot menu http://askubuntu.com/questions/63610/how-do-i-remove-ubuntu-in-the-bios-boot-menu But if using Windows you must create a Windows repair flash drive and keep it updated if you get a newer version of Windows. – oldfred Jun 12 '16 at 18:50

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Great care. If you delete Ubuntu the computer does not start.

Before deleting it, you should restore Windows 10 boot record deleting Grub.

The command in Windows 10 is bootsect.exe

bootsect /nt60 drive_letter: /mbr

This fixes boot record of partition mapped to drive_letter and the MBR of the Windows installed disk.

C:\Windows\system32>bootsect
bootsect {/help|/nt60|/nt52} {SYS|ALL|<DriveLetter>:} [/force] [/mbr]
Boot sector restoration tool

Restart the system in Windows, you can delete the Ubuntu partition with Windows Disk Quick Tools.

kyodake
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