Windows 10: Can't boot Windows 10 installation from USB - UEFI

Discus and support Can't boot Windows 10 installation from USB - UEFI in Windows 10 Installation and Upgrade to solve the problem; Hello! I have my laptop since last december (less than a year), and for unknown reasons, I got a BSOD a few weeks ago and none of the available... Discussion in 'Windows 10 Installation and Upgrade' started by AltarOfMyEgo, Nov 27, 2016.

  1. Can't boot Windows 10 installation from USB - UEFI


    Hello!

    I have my laptop since last december (less than a year), and for unknown reasons, I got a BSOD a few weeks ago and none of the available recovery tools managed to bring me back to my desktop; not even a refresh. That's when I promised myself that I would never ever again install a Microsoft OS, and went for Ubuntu 16.04 (which was already there on another partition). Now I'm realizing that I need some softwares that work best on Windows and not through a VM (eventhough I already have Windows 10 running in VM for Microsoft Office).

    So here's my issue:

    I created my bootable Windows 10 installation USB but I can't boot from it! I doesn't even show as an option. Ubuntu does. I tried a USB 3.0, 2.0, UEFI, Legacy, MBR, GPT... Nothing seems to work. Searched forums for hours and couldn't find a solution.

    Now for grub to be able to launch at startup, I had to add an efi file to the trusted uefi file list in the BIOS. I was wondering if such a file should be added to be able to boot from my USB... (secure boot is disabled).

    I want to keep my Ubuntu and Kali...

    I've attached a screenshot of my ssd partitions.

    Any idea?

    :)
     
    AltarOfMyEgo, Nov 27, 2016
    #1

  2. Windows 10 Activation

    Acer Aspire V5 431 Windows 8 upgraded to 8.1

    I

    I did upgrade last month to Windows 10, but went back to 8.1

    I needed to re install to factory settings (this is on a USB) using UEFI in Window 8.1, Iwent into the bios to change the boot to USB. I successfully re installed to factory settings from the USB, to build back up to the Windows 10 upgrade,
    but then on re boot it keeps looking for the USB to boot and won’t get past it (vicious circle).

    It will boot CD/DVD

    I installed Windows 8 and was going to build back up to the 10 upgrade, on re boot it looks for the USB and won’t boot into Windows

    I can install Windows 10 (full from the upgrade Version and it boots into Windows, so I looked for UEFI firmware to go into the bios and change boot order to HDD, I can’t find UEFI in Windows 10

    Now with 10 it needs activating, do you think M$ Activation (telephone) would understand I have this upgrade but it's a fresh install (being the only way to get into Windows)

    Sadly I can’t find an Activation telephone number for this version (upgrade) that I have used.

    Would I get it activated

    My intention of installing 10 was to use UEFI firmware to get into the bios, UEFI firmware is not in Windows 10

    I have tried thousands of F keys (should be F2) but can’t get into the bios. It’s as though UEFI has took control and left it looking to boot USB not HDD.
     
    Johnbarry30, Nov 27, 2016
    #2
  3. Wojtek_S Win User
    Is it possible to install Windows 10 in UEFI mode using the original USB stick?

    Hi,

    I would like to know whether it is possible to use the USB stick supplied with the full version of Windows 10 to install the system on a disk configured to use the GPT (rather than MBR) partition style.

    I am asking because the guidelines from Windows Setup: Installing using the MBR or GPT partition style stress that to install Windows on a UEFI disk, it is necessary to boot the setup medium in UEFI mode as well. However, the original
    USB stick seems to be using the MBR partition style. In any case I can't boot from it when the PC is configured to boot first from a "UEFI USB Key"; booting only succeeds when the firmware is set to boot first from a "USB Key". But then the installer converts
    the system disk to MBR even if it was previously set to use GPT.

    Does this mean that in order to install the system on a GPT disk, I cannot use the original USB stick, but I need to download the Windows 10 ISO file and write it to another USB stick formatted using the GPT partition style?

    Best regards,

    Wojtek
     
    Wojtek_S, Nov 27, 2016
    #3
  4. NavyLCDR New Member

    Can't boot Windows 10 installation from USB - UEFI

    How did you make the Windows 10 USB flash drive? It needs to be formatted as FAT32 and the partition on it marked as active to be compatible with both UEFI and legacy BIOS (or CSM). Once it is formatted as FAT32 and the partition marked as active, then you just copy the files and folders from the mounted Windows 10 ISO over to it.
     
    NavyLCDR, Nov 27, 2016
    #4
  5. I used the Microsoft Windows 7 tool, rufus (tried different options), unetbootin, and dd. The partition was always active. It booted only once but I couldn't install as the partition table was different. I'll try to do it as you advised and let you know how it all went.
     
    AltarOfMyEgo, Nov 27, 2016
    #5
  6. Okay, I just tried that and it didn't work. I can select my USB drive, but then it freezes on the Acer splash screen. The iso file is fine, since it loaded Legacy... Any idea? Maybe has something to do with the recovery partition? Should I delete it?
     
    AltarOfMyEgo, Nov 28, 2016
    #6
  7. NavyLCDR New Member
    What is on the hard drive should not affect booting from a USB flash drive. Two things to try:

    Try that for the USB flash drive.

    Also you can try converting the Windows 10 Installation drive to boot into Kyhi's recovery tools, see my quote in the middle of the OP:
    Windows 10 Recovery Tools - Bootable Rescue Disk - Windows 10 Forums
     
    NavyLCDR, Nov 28, 2016
    #7
  8. Can't boot Windows 10 installation from USB - UEFI

    It turned out the issue was the ISO... I tried with another one and it worked. Then I updated with the one than that wouldn't boot... I still don't know what the issue was, but I'm sure it was the ISO... Sorry for taking your time and thanks for your help! Do you have any idea what the issue could be with the ISO? I could boot and launch the installation in Legacy, but in UEFI...
     
    AltarOfMyEgo, Apr 4, 2018
    #8
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Can't boot Windows 10 installation from USB - UEFI

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