Then you would need to learn how to use them!
Just like with Grub Customizer! 
No…you throw away broken Windows. 
Well, if they are beyond repair, so …
issue 1001 with grub customizer
The name say it already it is grub-customizer not grub-settings
But users do not want to go the route to understand grub config and generation stuff like to use it… like it would be that… its not it is a tool to create a customized grub.