Cannot Boot From USB

  1. Posts : 5
    Windows 7, 8.1,10, Ubuntu, Android-x86
       20 Nov 2015 #1

    Cannot Boot From USB

    Currently, I am using Wiindows 7 Home Premium x86 with the drive in MBR partition style.

    I tried to make a bootable USB of latest Windows 10 x86 ISO with Rufus in this configuration:
    GPT partition Scheme for UEFI
    4096 bytes
    Quick Format
    Create extended label and icon files

    When I try to boot from the flash drive, it just goes into a black screen, then returns to the boot menu.

    I enabled both capabilities for UEFI and Legacy boot, UEFI is prioritized.

    What is the problem? Do I have to reformat the drive first to GPT, or it's not supported? Thank you.
      My ComputerSystem Spec

  2. Posts : 5
    Windows 7, 8.1,10, Ubuntu, Android-x86
    Thread Starter
       20 Nov 2015 #2


    I tried making a bootable USB with the same configuration in Rufus, except I made it compatible for Legacy BIOS.
    I successfully booted the USB. But I want to install Windows 10 in UEFI, any solution?

    In the BIOS Settings, booting to both UEFI and Legacy BIOS mode is supported.
      My ComputerSystem Spec

  3.    20 Nov 2015 #3

    I would try letting the Media Creation Tool make the USB flash drive:
    Windows 10

    You want the blue box near the bottom of the page "Download tool now".

    Then try booting that flash drive in UEFI mode.
      My ComputerSystem Spec

  4. spapakons's Avatar
    Posts : 2,601
    Windows 10 Pro 64-bit 1803 (April 2018 build 17134.407)
       21 Nov 2015 #4

    Some BIOS will try to boot USB in Legacy mode instead of UEFI and fail. To make sure you can press F8 (or whatever it is) to see the boot menu and then manually select the UEFI option for your USB flash drive. This will start with UEFI and your Flash model. If it doesn't start with UEFI it is legacy.
      My ComputerSystem Spec

  5.    21 Nov 2015 #5

    Do you want to boot in UEFI mode for some particular reason? Do you think it will have any advantages?
      My ComputerSystem Spec

  6. Posts : 5
    Windows 7, 8.1,10, Ubuntu, Android-x86
    Thread Starter
       21 Nov 2015 #6

    While the PC is in UEFI mode, the Windows PE version must match the PC architecture. A PC in 64-bit UEFI firmware mode can only boot 64-bit versions of Windows PE. A PC in 32-bit UEFI firmware mode can only boot 32-bit versions of Windows PE. On PCs that support both UEFI mode and legacy BIOS mode, you may be able to run 32-bit Windows PE on a 64-bit PC by changing BIOS menu settings from “UEFI mode” to “BIOS mode”, assuming the manufacturer supports legacy BIOS mode.

    I also read in murphy78's Windows 10 x86 ISO that it has UEFI support for 32-bit processors, while Windows 10 x64 ISO has UEFI support for 64-bit processors.

    On my 64-bit UEFI system, I can just either install a Windows x64 in UEFI or a Windows x86 in Legacy BIOS Mode.

    Sorry, this is my first device with UEFI.
      My ComputerSystem Spec

  7. spapakons's Avatar
    Posts : 2,601
    Windows 10 Pro 64-bit 1803 (April 2018 build 17134.407)
       21 Nov 2015 #7

    Use legacy mode to have a peaceful mind. What's the benefit of installing in UEFI mode? I don't think your computer will boot any faster or devices can be more compatible. It's up to drivers how devices behave.
      My ComputerSystem Spec

  8.    21 Nov 2015 #8

    I go old school and use diskpart, option 2 here, I can install in UEFI or legacy with that one thumb drive.
      My ComputerSystem Spec


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