Windows 8 and 8.1 Forums

Win 8.1 Not Booting From USB

  1. #1

    Posts : 3
    Windows 8.1 Pre Installed 64 Bit

    Win 8.1 Not Booting From USB

    So I have a win 8.1 preinstalled 64 bit. I have a Lenovo y-40. My hard drive crashed possibly due to hibernation file error. I have the Win 8.1 USB prepared using Rufus. I have UEFI Boot.Click image for larger versionClick image for larger version

      My System SpecsSystem Spec

  2. #2

    Posts : 879
    Windows 10

    Step 1:

    Reset the UEFI firmware (BIOS) settings back to the factory defaults.

    Lenovo UEFI firmware (BIOS) settings.
    - Exit; OS Optimized Defaults: Win8 64bit
    - Boot; Boot Mode: UEFI
    - Security; Secure Boot: Enabled

    Step 2:

    Do you have a UEFI boot mode compatible Windows 8.1 64-bit USB flash drive?

    Here is info about UEFI Boot Mode (installing using the GPT partition style) and Legacy BIOS Boot Mode (installing using the MBR partition style). -> link

    How to create a bootable USB flash drive.

    Note: You do not need this step if you download the Windows 8.1 installation media from Microsoft's web site and select the "USB flash drive" option (see this link for help). This USB flash drive can be booted in both UEFI and Legacy BIOS boot mode.
    Step 3:

    How to install Windows 8.1 64-bit in UEFI boot mode, if you have a Lenovo laptop that came with Windows 8/8.1 preinstalled. -> link
      My System SpecsSystem Spec

  3. #3

    Posts : 3
    Windows 8.1 Pre Installed 64 Bit

    My HDD can't be found when installing on USB.
      My System SpecsSystem Spec

  4. #4

    Posts : 3
    Windows 8.1 Pre Installed 64 Bit

    My HDD can't be found when installing on USB. Click image for larger version
      My System SpecsSystem Spec

Win 8.1 Not Booting From USB

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