Win10 - Windows could not update the computer's boot configuration. Installation cannot proceed
To completely remove any previous installations of Windows, you would have to remove the EFI/Boot and EFI/Windows folders from the EFI volume. The EFI\Windows\Boot folder contains the Boot Configuration Data (BCD) file. You can mount this volume by using the command given below.

sudo diskutil mount disk0s1


You can use the Finder application to move the folders to the trash. Afterwards, empty the trash. You can unmount the EFI volume by using the command given below.

diskutil unmount disk0s1


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