Quote Originally Posted by joed1960 View Post
I got the executing grub install dummy failed as well, but I don't have another OS on my laptop. It's an HP Pavillion which stopped booting; system recovery didn't work. I wiped it, and installed Kali. How can I get it to boot up? Booting gets me to a grub prompt with a list of possible commands.
This error comes when grub is already present in the EFI system partition so installer can't rewrite grub with the same name hence it is called install dummy failed. Skip this step from the installation and proceed to finish the installation of kali.

Then follow the instructions given here https://forums.kali.org/showthread.p...ith-Windows-10