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#11
You can cancel automatic repair when it first starts, then click "Advanced Repair Options" to get to the command prompt. Then use fixmbr to rewrite the MBR and fixboot to fix any boot-related issues. This is useful when deleting, for example, a Linux distribution such as Ubuntu, which replaces the default loader with GRUB. Anyways, he's tried that already. He also said he changed the settings in the first place to flash an Xbox 360 drive ROM.