Windows 8 and 8.1 Forums

Lenovo Y50-70

  1. #1

    Lenovo Y50-70

    I could install Win 8 for on MBR partition. However, when I do it the way described here with rufus 2.1.649, my Lenovo BIOS, secure boot disabled, UEFI boot mode activated with HDD UEFI GTP preformated shows me the EFI USB Device and says

    EFI USB boot failed.

    any idea would be appreciated.

      My System SpecsSystem Spec

  2. #2

    Posts : 879
    Windows 10

    Lenovo Y50-70

    UEFI boot mode (installing using the GPT partition style)

    - Secure Boot: Enabled
    - Boot Mode: UEFI

    Legacy BIOS boot mode (installing using the MBR partition style)

    - Secure Boot: Disabled
    - Boot Mode: Legacy

    Here is more info: link


    You do not need to change the boot order of drives in your computer's UEFI firmware (BIOS).
    - Connect your Windows 8.1 USB flash drive or insert your Windows 8.1 DVD.
    - Shut down your laptop.
    - Press the NOVO button. The system loads boot options.
    - Select the BOOT MENU option.
    - Select your USB/DVD from the boot menu.
    Last edited by genet; 24 May 2015 at 01:00.
      My System SpecsSystem Spec

  3. #3

    Posts : 20
    Windows 7 Professional SP1 64-bit

    For Windows 8 on an MBR disk, change Boot Mode to Legacy Support and Boot Priority to Legacy First.

    If you want to install Windows 7, Windows Server 2008 R2, Windows Server 2008 or Windows Vista SP1 on a GPT drive, keep Boot Mode to Legacy Support but change Boot Priority to UEFI First.

    For Windows 8, Windows Server 2012 and later, keep Boot Mode to UEFI and enable Secure Boot.

    So,to cut a long story short:

    UEFI installation in Windows 8 and newer:
    Boot Mode- UEFI
    Secure Boot- Enabled

    UEFI installation in Windows 7 and older:
    Boot Mode- Legacy Support
    Boot Priority- UEFI First
    Secure Boot- Disabled

    BIOS installation for all versions:
    Boot Mode- Legacy Support
    Boot Priority- Legacy First
      My System SpecsSystem Spec

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