Windows 8 and 8.1 Forums


UEFI (Unified Extensible Firmware Interface) - Install Windows 8 with

  1. #100


    Posts : 5
    Microsoft Windows 8.1 Single Language 64-bit


    Very helpful. Thank you very much.

      My System SpecsSystem Spec

  2. #101


    Posts : 1
    Windows 8


    Hi, I bought a T440s and am trying to install Win 8 in UEFI mode. I have an original Win 8 DVD (system builder) and tried it via USB as well. My problem: There's no UEFI DVD/USB option in the boot menu (F12) - only DVD/USB without UEFI. However if I put the DVD/USB in my friends MacBook Pro the EFI option is shown. So the problem is probably the T440s.
    I tried a lot of different settings in the BIOS:

    UEFI only/both
    CSM enabled/disabled
    Secure Boot on/off
    Quick Boot on/off

    Furthermorem, the T440s is equipped with a 500 GB Samsung EVO SSD. MBR/GPT should not be the problem, since it should still show the UEFI option in the boot menu even if the SSD would be partitioned in MBR.
    What am I doing wrong?
      My System SpecsSystem Spec

  3. #102


    Posts : 21,821
    64-bit Windows 10


    Hello Mistapsn, and welcome to Eight Forums.

    If you use the settings below, do you see the same partitions that are in screenshot under step 8 at that point? If so, then it's installing as UEFI.

    UEFI only
    CSM disabled
    Secure Boot off (you can turn on after installation has finished)
    Quick Boot off (you can turn on after installation has finished)
      My System SpecsSystem Spec

  4. #103


    Posts : 17
    windows 8.1


    Hello,
    Recently assembled a brand new PC using the asrock Q1900DC-ITX Motherboard. I have a brand new Samsung 850 SSD 120GB, 4GB ram, etc.

    I have a Windows Enterprise 64 bit ISO file. The Motherboard is UEFI. I followed the step by step directions in this tutorial. I used Rufus on a 16GB flash drive. All went well.

    I made the adjustments in the BIOS to boot to the UEFI USB drive, restarted, then windows begins to install. Problem is, I only get through the 2nd step where Windows is beginning to install (with the green check marks etc). I then get various errors including 0x80070057 and this one most often 0xC0000005 - verify installation sources are accessible.....

    Ive been trying various things over the last 3 days with NO luck. Any suggestions? Also, will a bootable windows DVD work in my situation (with UEFI BIOS)?

    Im getting desperate lately

    Thanks,
    Brandon
      My System SpecsSystem Spec


  5. #104


    UK
    Posts : 39
    Windows 8.1 Update 1 64bit Pro


    Cannot get this to work on my laptop.

    It seems I can only boot off the usb stick enabling legacy mode.

    When I make the partitions in the setup it keeps making MBR on my SSD not GPT.

    If I follow the guide the USB isnt bootable at all.

    --edit--

    Was due to the filesystem i had selected ntfs.

    However fat32 has a 4 gig filesize limit so I ended up having to split my wim file to make it work with fat32.

    The windows installer is an odd beast, here is some anomalies I have had with 2 usb sticks.

    Originally both my usb sticks were MBR yet one would not allow partitioning MBR drives, the other would not allow GPT, I could never find the difference between the two to find out why. I was able to install GPT win8.1 on my desktop tho using GPT with the fast usb stick (which was blocking MBR installation).

    My new laptop is GPT, however the fast USB stick was creating MBR partitions. This is why I had to make a GPT USB stick, because the installer will only create GPT partitions on my laptop when the USB stick booted from GPT.
    Last edited by Chrysalis; 29 Apr 2016 at 04:41.
      My System SpecsSystem Spec

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UEFI (Unified Extensible Firmware Interface) - Install Windows 8 with

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