[NTLUG:Discuss] error 18 correct, but this is a head scratcher

[Allen Meyers]

Daniel said

Some time ago, there was a practice of having a boot partition followed
> by several other partitions. This practice was partly to overcome the
> problem you are experiencing now.
>
> The answer? Install Linux first, then Windows. Then when Windows is done
> installing, "fix" the boot problem by reinstating grub using a Linux repair

Sounds like a plan that I am more then willing to give it a shot.
However please elaborate someone specifically how to reinstall grub
using Linux repair. Just a challenged old man trying to get it right

Thanks for helping