Setup and Run Windows 10 on USB Flash Drive  

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  1.    17 May 2015 #10

    Need help please!

    I am up to the last command (bcdboot G:\Windows /s G:\) and getting the following error:
    BFSVC Error: BcdOpenSystemStore failed with unexpected error code, Status = [c000015c]

    Any ideas???
      My ComputerSystem Spec

  2. Fafhrd's Avatar
    Posts : 1,929
    Windows 10 x86 14383 Insider Pro and Core 10240
       27 Jun 2015 #11

    Here are a couple of tips regarding firstly, obtaining WAIK tools for Vista, Windows 7, Windows 8, Windows 8.1, without a lengthy full download of the whole Windows Automated Installation Kits.

    The second tip regards extracting files from ISO, and many other file images without mounting them as virtual optical drives.

    To get all these versions (no more than about 30MB total) takes no longer than a few minutes, on an average broadband connection.

    Download the free utility: GetWaikTools by JFX, a 7z file of 281KB extracts to an executable file of 293KB:

    83 - Download ImageX, BCDBoot and other WAIK tools - RMPrepUSB

    Secondly, to open Image files Like .ISO, .WIM, .SWM, .CAB, .VHD, .DMG, etc., and compressed executables, .MSI, .EXE, and many more, all you need is 7-Zip, a well established and respected free utility by Igor Pavlov:

    The 9.20 stable version is available for x86 and x64 versions. I have long found that the beta versions are very stable too, now at version 15.05 which can handle many NTFS file features when unpacking
    The current version stands at 15.14, and also handles ESD files!
    .WIM files, like symbolic links, which were not possible before.

    I am just about to try installing Windows 10 10130, from the downloaded .ISO using only 7-Zip to open the .ISO file and then \sources\Install.wim and unpack the image 1 (Pro version of Windows 10) to a clean partition. I will report back in due course. There were unknown problems. 7-zip often warns that it finds irregularities in WIM images, but opens them all the same.
    Last edited by Fafhrd; 06 Mar 2016 at 03:06.
      My ComputersSystem Spec

  3.    05 Nov 2015 #12

    Hi There,

    This helped me to get in the right direction of why my brand new USB stick of genuine Windows 10 was not booting on my PC ...
    I found the issue was it wsa a USB 3 stick and my pc is old school. So I basically used this tutorial to create a new bootable usb HDD stick and copied all of my files on the 3 stick onto the 2 stick .... now it loads ... and then gets into the setup phase of the nlack screen and then right as it finished loading the files ... it fails. I have pulled the SSD drive out and completely formatted the drive and removed the 2 partitions that it had created ... tried it in both 32 and 64 bit modes .

    Any ideas ..

    comes up with the following:
    windows failed to start. A recent hardware or software change might be the cause.
    To solve the problem:
    1. Insert your windows installation disc and restart your computer.
    2. choose your language settings, and then click "Next"
    3. Click "repair your computer"

    If you do not have this disk .... blah blah,,, blah
    File: \windows\system32\boot\winload.exe
    Status 0xc0000225
    Info: The application of operating system couldn't be loaded because a required file is missing or contains errors
      My ComputerSystem Spec

  4.    25 Jan 2016 #13

    What happens about WTG activation if I already have W10 activated on my usual PC?
      My ComputersSystem Spec

  5. Brink's Avatar
    Posts : 35,371
    64-bit Windows 10 Pro build 18317
       25 Jan 2016 #14

    Steve C said: View Post
    What happens about WTG activation if I already have W10 activated on my usual PC?
    It would need a new product key. Otherwise, they will both eventually get deactivated.
      My ComputersSystem Spec

  6.    09 Mar 2016 #15

    Hi there,

    First of all no need to download whole AIK kit for just imagex.exe
    Imegex.exe can get from MS web site. Here for x86 and here for x64
    Second thing is; Windows 8 and 10 have allready create virtual driver capability: ISO and IMG File - Mount or Unmount in Windows 10
    An info note can be nice :)

    Best regards
      My ComputerSystem Spec

  7.    04 Jul 2018 #16

    Three quick questions please:

    1. I was so excited by the tutorial that I dove right in without reading all the comments. As a result, the version of imagex.exe that I happened to find in some corner of the Internet (and used) is 6.3.9600.17031. (To contrast: I was using the tutorial to install Win 10, and the "Win 10 version" that I get from GetWaikTools (thanks to JFX and Fafhrd for a previous comment and its contents) is version 10.15063.0). The installation appears to have completed without errors. Do I need to worry that I used an "old" version of imagex? Or can I say that if the imagex step worked, then I don't have worry about it further.

    2. I am amazed that the words "UEFI", "EFI", and "BIOS"(or "legacy") don't appear in this tutorial. Does this mean that if I start with a GPT USB flash drive, then all the pieces will magically alight and I'll get an EFI installation? And if I start with an MBR drive, then I'll get what old people like me used to call "an installation"? In particular, does bcdboot know what to do automagically?

    3. One of the earlier comments ominously asserts that the bcdboot command MIGHT have to change with retail Windows 10. I hope that I can assume that the current tutorial gives the correct command? If not too onerous, perhaps someone could give a brief explanation of what that was about (so that I'll be able to recognize in the future if the command needs to be modified yet again).

    {Edit: Actually, I did need to make a tiny modification to the instructions as given. I needed to add the option "/f BIOS" to the bcdboot command. (So the command i entered was "bcdboot H:\Windows /s H /f BIOS"). I suppose that I hadn't realized that the flash drive was MBR, so I ended up with a BIOS install. The machine boots strict UEFI, so I guess that bcdboot only installed EFI files. So I'll have to change the machine to CSM to boot this installation; assuming it works, I'll change it back and try to migrate the disk to GPT. None of this is interesting, I only mention it in case some user finds that she did all the steps without errors, but the stick doesn't boot. It's a corner case, but perhaps the tutorial should instruct people to do "bcdboot H:\Windows /s H /f ALL" just to be more robust.}

    Thanks so much for this information; I really appreciate the fact that your forums always ACTUALLY ANSWER THE QUESTION ASKED. I was getting really annoyed by the endless number of "tutorials" out there which basically say " is To install Windows onto a USB stick is not a difficult task; just purchase my/our $30 piece of software and you'll be fine...."

    Last edited by sbpetrack; 04 Jul 2018 at 10:13. Reason: to add the information about the need for the /F BIOS flag
      My ComputerSystem Spec

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