But back to the OPs problem. My best guess would be that the Windows system has overwritten the boot sector to "repair" itself. Best way to fix this is to boot into either a live CD, or an installer CD appropriate to the system (as long as it allows you to "break out" of the installer). You can then mount your system, chroot into it, and then repair Grub.
I'm only familiar with Debian, where current installer disks have an option to get into a system shell - the principle (but probably not details) will be the same for another distro. The steps I follow are roughly (just copied and pasted from another forum some time ago) : mkdir /sysroot mount /dev/your-root-dev /sysroot mount /dev/your-boot-dev /sysroot/boot mount --bind /dev /sysroot/dev mount --bind /sys /sysroot/sys mount --bind /proc /sysroot/proc mount --bind /run /sysroot/run (recommended if you are using systemd) chroot /sysroot grub-install /dev/your-grub-boot-device (may be grub2-install on some distro) _______________________________________________ Help-grub mailing list [email protected] https://lists.gnu.org/mailman/listinfo/help-grub
