Windows 8 and 8.1 Forums


UEFI Bootable USB Flash Drive

  1. #1


    Posts : 27
    Windows 8.1 Pro

    UEFI Bootable USB Flash Drive


    USB Flash Drive has to be in GPT?

      My System SpecsSystem Spec

  2. #2


    Hafnarfjörđur IS
    Posts : 4,377
    Linux Centos 7, W8.1, W7, W2K3 Server W10


    Hi there

    NO

    Creating a bootable UEFI drive is done by for example downloading a Live Linux distro on to a bootable USB drive. When the drive boots if the BIOS in the machine supports UEFI you'll usually (in the case of Linux distros) get TWO options - boot the UEFI OS or the regular one.

    The same with Windows if you make a bootable USB from the Windows install ISO.

    Cheers
    jimbo
      My System SpecsSystem Spec

  3. #3


    Posts : 27
    Windows 8.1 Pro


    Thanks.
    How to make UEFI bootable DVD for Windows 8.1?
      My System SpecsSystem Spec

  4. #4


    Posts : 27
    Windows 8.1 Pro


    This is error when booting from Windows 8.1 iso in Virtual Box in UEFI mode.

    Click image for larger version
      My System SpecsSystem Spec

  5. #5


    Harrisonburg, Va.
    Posts : 10,488
    Windows 8.1.1 Pro with Media Center
    Last edited by David Bailey; 24 Jul 2014 at 07:09. Reason: added picture
      My System SpecsSystem Spec

  6. #6


    Posts : 879
    Windows 10


    VMware Player (VMware Workstation Player)

    VMware Player - Install Windows 8

    How to install Windows 7/8/10 64-bit in UEFI boot mode.

    - Create a new virtual machine.

    - Open the .vmx (virtual machine configuration) file of your virtual machine, add in:

    firmware = "efi"

    Click image for larger version

    Click image for larger version

    Click image for larger version

    Click image for larger version

    Click image for larger version

    Click image for larger version

    If you ever want to force VMware Player to enter the Boot Manager screen on next boot, add in:

    bios.forceSetupOnce = "TRUE"

    Note that bios.forceSetupOnce = "TRUE" will be automatically deleted in .vmx file after successful booting.

    Click image for larger version

    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
    Last edited by genet; 03 Nov 2015 at 11:20.
      My System SpecsSystem Spec

  7. #7


    Sydney, Nova Scotia, Canada
    Posts : 6,485
    Windows 10 Education 64 Bit
      My System SpecsSystem Spec

  8. #8


    Posts : 27
    Windows 8.1 Pro


    Thanks.
    Does Hyper-V supports UEFI?

    My Dvd doesnt boot in UEFI mode. What to do?
      My System SpecsSystem Spec

  9. #9


    Hafnarfjörđur IS
    Posts : 4,377
    Linux Centos 7, W8.1, W7, W2K3 Server W10


    Quote Originally Posted by forwinhelp View Post
    Thanks.
    Does Hyper-V supports UEFI?

    My Dvd doesnt boot in UEFI mode. What to do?
    Hi there.

    If the DVD is a Windows INSTALL ISO the relevant version of the OS will be loaded and booted up. You don't have to boot the DVD in UEFI mode --in fact it probably WON'T work anyway. Just in your computers BIOS enable LEGACY BOOT so the computer can boot an OS from an external device. If UEFI is enabled then the install will be the UEFI version (always assuming the target HDD is formatted with GPT and not MBR).

    Note this is NOT the same as PROTECTED BOOT -- you need to disable that first or "external boots" won't work. I suspect that "Protected Boot" will disappear before too long anyway. UEFI is DIFFERENT -- nothing wrong with using it - and it does work even if protected boot is disabled too.

    Cheers
    jimbo
      My System SpecsSystem Spec

  10. #10


    Posts : 27
    Windows 8.1 Pro


    Quote Originally Posted by alphanumeric View Post
    I want to create UEFI Bootable DVD
      My System SpecsSystem Spec

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