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    T440s Windows 8 UEFI-Installation

    Discussion in 'Lenovo' started by Mista_PSN, Jul 9, 2014.

  1. Mista_PSN

    Mista_PSN Notebook Enthusiast

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    Hey, I bought a T440s without OS. Now I want to do a UEFI-installation of Win 8 via a system builder DVD (EVI folder is included on DVD). However, in the boot menu I cant't chose the UEFI-DVD drive. I already enabled UEFI boot an disabled CSM-support in the bios. secure boot was already disabled. Any clue how to solve this problem?
     
    Mista_PSN, Jul 9, 2014
    #1
  2. MiB

    MiB Notebook Consultant

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    Create an ISO image of your Win 8 system builder DVD.
    Then use a utility like this to create a UEFI bootable USB flash drive of the ISO image to boot from.
     
    MiB, Jul 9, 2014
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  3. Mista_PSN

    Mista_PSN Notebook Enthusiast

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    How do I do that? AFAIK the ISO you get via the Microsoft download tool does't support UEFI either. I tried this guide http://www.eightforums.com/tutorials/15458-uefi-bootable-usb-flash-drive-create-windows.html but it didn't work. There's no UEFI USB to chose in the boot menu.

    However, if I put the stick into a MacBook, I can choose EFI Boot. So maybe the problem is not the stick/DVD but the T440s and its BIOS settings.

    I chose
    1. UEFI Boot only
    2. CMS support on/off (tried both)
    3. secure boot disabled/enabled (tried both)
     
    Mista_PSN, Jul 9, 2014
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  4. phamhlam

    phamhlam Notebook Evangelist

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    Are you using a USB 2.0 flash drive? I had that problem and a USB 2.0 flash drive worked more often than a USB 3.0 drive. I also used Rufus to create my bootable flash drive.
     
    phamhlam, Jul 9, 2014
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  5. Mista_PSN

    Mista_PSN Notebook Enthusiast

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    Yup, it's 16 GB USB 2.0. I also have a 500 GB Samsung EVO SSD which was built in by the vendor. MBR/GPT on the SSD should not matter, since in any case at least you are able to chose UEFI in boot menu.

    Do you have a T440s and could chose UEFI USB in the boot menu? Or was there only one USB-option without UEFI?
    Did u´you change something in the BIOS?
     
    Mista_PSN, Jul 10, 2014
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  6. Mista_PSN

    Mista_PSN Notebook Enthusiast

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    Can anyone with a T440s confirm or deny that UEFI mode gets shown in the boot menu? I ask because I read in some post that UEFI isnt selectable in the bootmenu, but it will install in UEFI mode even if you chose the non-UEFI option
    .
     
    Mista_PSN, Jul 10, 2014
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