Your primary hard disk is a windows "dynamic disk", and so grub can not be installed there. You will need to either convert it back to a basic disk, or install grub on another disk.
** Changed in: grub-installer (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1619964 Title: Unable to re-install. Grub cannot create bootloader, and when I select "Continue without" a fatal error occurs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1619964/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs