Перезагрузиться в выбранную систему
Reboot in selected os
Edit /etc/default/grub: sudo gedit /etc/default/grub and modify the "GRUB_DEFAULT=0" value (it should be on line 4) from "0" to "saved" (without the quotes) so that it looks like this:
GRUB_DEFAULT=saved
sudo update-grub
Now to reboot Ubuntu in Windows or some other OS, run the following command: sudo grub-reboot X
http://www.webupd8.org/2010/10/how-to-reboot-in-windows-from-ubuntu.html
