[CentOS] Grub configuration from within Windows

Ok, to summarize, using a small CentOS system in a virtual machine is
one option (the "safe" one, I would say), while mounting / from
Windows using that driver is another one (the "easy" one, because It
doesn't feel so safe).

Thanks to all who have replied, I'll look into these ideas over the
weekend, and then I'll decide.

Best, :-)
Marko