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  1. 1. If Legacy BIOS is enabled
  2. 2. If UEFI BIOS is enabled
How to uninstall ubuntu with windows/ubuntu dual system

https://www.jianshu.com/p/66a092caaa36?tdsourcetag=s_pctim_aiomsg

This is original from above blog.

On a dual-system computer, if you use Ubuntu’s built-in grub program as boot to boot, you cannot directly format the disk on windows where Ubuntu is located, otherwise the MBR contents on the hard disk will be wiped out and the boot will not succeed.

To uninstall Ubuntu, you need to first delete its MBR content and then format its hard disk. For different computers, there are different ways to modify the MBR, so the first step is to identify the BIOS boot type, the method is:

Win+R open and run, enter msinfo32, press enter to view system information

If traditional is displayed in BIOS mode, the boot method is Legacy BIOS. If UEFI is displayed, then the boot method is UEFI.

If Legacy BIOS is enabled

1.1 download the Mbrfix tool and place it anywhere, such as: ‘D\Tools\’

1.2 run the command prompt as the administrator to enter the MBRfix tool directory, for example:

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D:
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cd \Tools

1.3 entering

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MbrFix /drive 0 fixmbr /yes

1.4 restart the computer, see whether directly into the Win10 system, if so, that deleted successfully

If UEFI BIOS is enabled

2.1 download Easy UEFI

[Easy UEFI] (https://www.easyuefi.com/index-cn.html)

2.2 after installing UEFI, enter the function of management EFI startup and delete the EFI partition of Ubuntu

2.3 restart the computer, directly enter Win10, successful

After successfully modifying the MBR content, you can directly format the corresponding hard disk of Ubuntu

Author: Knifelee
Link: https://knifelees3.github.io/2019/10/17/A_En_How_To_Delete_Ubuntu_In_Windows/
Copyright Notice: All articles in this blog are licensed under CC BY-NC-SA 4.0 unless stating additionally.
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