Boot into the ubuntu live CD open a terminal and run : command:- "sudo grub" then: command:- "find /boot/grub/stage1" replace the question marks in the following command with the output of the last command : command:- "root (hd?,?)" If you have more than one linux install, use the one that you want the grub to run from. [like : root (hdo,1) ,probably] then: command:- "setup (hd0)" This will put grub on the MBR of windows so if you want it somewhere else specify that here. In my opinion it is much easier to use the windows MBR for grub, and not bother about putting it somewhere else. If you reallyb want to you cvan move it later on to which ever partition you like, but frankly that just complicates things unnecessarily. and command:- "quit" Reboot.