This question already has an answer here:
I had Kali Linux, Ubuntu, and Windows 7 installed alongside each other with a GRUB bootloader to boot into each, until I upgraded to Windows 10. I expected that would overwrite the bootloader, but it didn't. I have since deleted the Ubuntu partition from Windows, but I'm prevented from doing so with the Kali partition. Even though I've deleted the Ubuntu partition, the GRUB bootloader still has an entry for it. I've tried running linux bootrepair several times to no avail. I really just want to uninstall the GRUB bootloader and replace it with a Windows 10 bootloader.
So, I have tried following the steps of the answer from this thread. However, when I run the command
bootrec.exe /fixmbr I receive an error stating that the system cannot find the file specified.
Running the command
bootrec.exe does seen to show the correct dialogue giving me the commands and what they should do. However,
bootrec.exe /fixboot also gives an error stating that the system cannot find the file specified.
Also, running the commands
bootrec.exe /scanos and
bootrec.exe /rebuildbcd each find 0 Windows installations