Lenovo G40-70 : Dual boot windows 8.1 and fedora 22

Buenas tardes Estimados, recurrí al foro porque no puedo ingresar a mi partición de W 8,1 que trae instalada de fábrica la laptop, por motivo que instalé Fedora 22  (en otra partición)Quizas mi error fue instalar Fedora en modo legacy,y cambiar la bios al modo UEFI no reconoce el disco duro por ende no dejar cargar windows 8,1 .,si me permiten puedo indicar a detalle el mensaje que presenta (Imagen) , de ser factible me puede ayudar a solucionar el dual boot sin dañar la partición de Windows (y respaldar información), caso contrario me gustaría me ayuden con alguna ISO original que contenga sus aplicaciones Pre Instaladas ya que me acostumbré a ellas.. y yo proceder  a realizar nuevamente la instalación.Esperando su comprensión, me suscribo. Saludos.  

No estoy seguro pero creo que cuando se instala Windows se coje la informacion de la licencia de la bios automaticamente, no tiene que ser un disco de recuperacion. En webs de descargas podras encontrar imagenes iso de windows aunque no se si son seguras, tengo isos originales de Microsoft descargados de Dreamspark por ser universitario, no se si hay otros medios oficiales. Yo tambien instale una distro GNU/Linux en mi caso Ubuntu, me documente bien e hice un usb de recuperacion de Windows, tengo compañeros que tienen que cambiar entre legacy y uefi para poder cambiar de SO. He encontrado una herramienta de microsoft para crear un dvd o pen de instalacion http://windows.microsoft.com/en-us/windows-8/create-reset-refresh-media

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    billodwyer wrote:Being unused to UEFI I was thinking about trying to just run everything in BIOS/Legacy mode, but that doesn't seem very sensible to me, especially since I have the hardware so I might as well use it.
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    Other reading about setting up dual boots suggests to me that installing Windows 7 on its own HDD with MBR partitioning and Arch on a separate (set of) drive(s) with GPT partitioning will be sufficient. The reason being that if the BIOS is set up to boot sda, which has GRUB as its bootloader, using GRUB I can choose to boot into Windows despite it being on a separate hard drive.
    This is an unworkable idea, at least as stated and if you want to do an EFI-mode boot. Windows ties the partition table type to the boot mode: Windows boots from MBR disks only in BIOS mode, and from GPT disks only in EFI mode. Thus, using MBR for the Windows disk will require a BIOS/CSM/legacy-mode installation of Windows. Furthermore, neither gummiboot nor GRUB can redirect from EFI mode to BIOS mode (or vice-versa), so if you do it this way, you'll be forcing yourself to boot Linux in BIOS mode, to switch between BIOS-mode and EFI-mode boots at the firmware level (which isn't always easily controlled), or to use rEFInd to redirect from an EFI-mode boot to a BIOS-mode Windows boot.
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    I know this can be a lot to absorb. The official rules aren't really all that complex, but different EFIs interpret the rules differently, and the different capabilities of the various boot managers and boot loaders creates a lot of subtle implications for how you set everything up.
    1. Have I gotten this all completely wrong?
    Significant parts of it, I'm afraid; see above. You're working under BIOS assumptions, which don't apply to EFI.
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    GRUB can do this, but gummiboot can't. You set one of those (or something else, like rEFInd) as your primary boot manager. Using both GRUB and gummiboot adds unnecessary complexity, IMHO. OTOH, setting up multiple boot managers or boot loaders is possible, and can give you a fallback in case one fails. For instance, there's a known bug that affects 3.7 and later kernels, mostly on Lenovo computers, that causes the EFI stub loader to fail sometimes. Thus, if you use rEFInd, gummiboot, or the EFI's own boot manager to launch the kernel via the EFI stub loader, having GRUB, ELILO, or SYSLINUX set up as a fallback can provide helpful insurance in case a kernel upgrade causes your normal boot process to fail.
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    ‎Thank you for using HP Support Forum. I have brought your issue to the appropriate team within HP. They will likely request information from you in order to look up your case details or product serial number. Please look for a private message from an identified HP contact. Additionally, keep in mind not to publicly post ( serial numbers and case details).
    If you are unfamiliar with the Forum's private messaging please click here to learn more.
    Thank you,
    Omar
    I Work for HP

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    Kate Li
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