There is a similar bug 50330, for which this fix does not work (because this registry key is not present).
https://launchpad.net/distros/ubuntu/+source/grub/+bug/50330/ -- after boot into Windows XP, grub menu is not displayed and computer reboot https://launchpad.net/bugs/26058 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs