Creating a Bootable Drive

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  1. Posts : 35
    Windows 10
       #1

    Creating a Bootable Drive


    Hello everyone,

    I am trying to create a bootable Windows 10 Enterprise 1809 flash drive using Rufus. This method use to work with me with all my Windows Enterprise Anniversary updates. For some reason, it is indeed not appearing when I restart my computer to boot into it. Does anyone have any recommendations on how to troubleshoot this?

    Thank you for your help.
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  2. AddRAM's Avatar
    Posts : 3,850
    Windows 10 Pro x64 20H2
       #2

    Are you doing a clean install or just updating your PC ?
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  3. Posts : 35
    Windows 10
    Thread Starter
       #3

    It would be used to do a clean install across multiple workstations.
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  4. Berton's Avatar
    Posts : 10,536
    Win10 Pro Versions 2004 and 2009/20H2, Win10 Pro IP_Dev, Win10 Home 1909
       #4

    Janothin said:
    It would be used to do a clean install across multiple workstations.
    I'd suggest using the MCT/Media Creation Tool to create a bootable USB Thumb drive of sufficient capacity, minimum 8GB for either x86 or x64. If wanting to use the choice of having both x86 and x64 version use a 16GB drive. It will be formatted/reformatted as FAT32 and bootable with most computers. Using seemingly over-capacity drives takes into account the loss of space due to partitioning and formatting, i.e. a 4GB drive will not hold 4GB of data. The same applies to CD or DVD discs, formatting always takes a bit of space.
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  5. Posts : 35
    Windows 10
    Thread Starter
       #5

    The Microsoft Creational Tool does not allow me to do import an Enterprise copy of Windows 10. I would rather have a solution to have a Enterprise copy on a flash drive then having to update the product key to transition from Pro to Enterprise on each workstation.
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  6. Ztruker's Avatar
    Posts : 13,512
    Windows 10 Pro X64 20H4 19042.746
       #6

    Here is a manual (non-Rufus) procedure originally posted by @NavyLCDR that I recorded and saved (with slight modifications). I've used it many times now and it works under all boot conditions, UEFI/GPT/MBR or BIOS/MBR.

    1. Download and save the ISO you need to your hard drive.
    2. Insert the USB flash drive.
    3. Open a Administrator Command Prompt and enter: diskpart (if it isn't an administrator command prompt, it will ask for administrator permission).
    4. list disk
    5. select disk # <- replace # with the actual disk number of the USB flash drive
    6. clean <- this will erase the disk selected above, make sure you selected the USB flash drive!
    6a. If the flash drive shows as GPT then you need to convert it to MBR: convert mbr
    7. create part pri
    7a. sel part 1
    8. format fs=fat32 quick
    8a. assign
    9. active
    10. exit
    11. exit - and if the first Command Prompt was not an Administrator Command Prompt, exit that one too.
    11. Mount the saved ISO file. If you are using Windows 8 or 10, you only have to right click on it and click on mount. If you are using Windows 7, then you must use a program like WinCDEmu to mount the ISO file:
    WinCDEmu - the easiest way to mount an ISO. And more...
    12. Copy all the files and folders from the mounted ISO file to the USB flash drive.
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  7. blueskyler's Avatar
    Posts : 118
    windows 10
       #7

    Ztruker said:
    Here is a manual (non-Rufus) procedure originally posted by @NavyLCDR that I recorded and saved (with slight modifications). I've used it many times now and it works under all boot conditions, UEFI/GPT/MBR or BIOS/MBR.

    1. Download and save the ISO you need to your hard drive.
    2. Insert the USB flash drive.
    3. Open a Administrator Command Prompt and enter: diskpart (if it isn't an administrator command prompt, it will ask for administrator permission).
    4. list disk
    5. select disk # <- replace # with the actual disk number of the USB flash drive
    6. clean <- this will erase the disk selected above, make sure you selected the USB flash drive!
    6a. If the flash drive shows as GPT then you need to convert it to MBR: convert mbr
    7. create part pri
    7a. sel part 1
    8. format fs=fat32 quick
    8a. assign
    9. active
    10. exit
    11. exit - and if the first Command Prompt was not an Administrator Command Prompt, exit that one too.
    11. Mount the saved ISO file. If you are using Windows 8 or 10, you only have to right click on it and click on mount. If you are using Windows 7, then you must use a program like WinCDEmu to mount the ISO file:
    WinCDEmu - the easiest way to mount an ISO. And more...
    12. Copy all the files and folders from the mounted ISO file to the USB flash drive.
    this method works with windows 10 1809? because the iso is larger then 4GB ......
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  8. Ztruker's Avatar
    Posts : 13,512
    Windows 10 Pro X64 20H4 19042.746
       #8

    I just downloaded the latest WIn 10 ISO via MCT.

    install.esd is less than 4GB:

    Creating a Bootable Drive-install.esd.jpg

    So the procedure I posted should work okay. I don't know if it will fit on a 4GB flash drive or not.
    The ISO is 3.86GB (4,147,445,760 bytes).

    Edit: I just went through the process after downloading the latest Win 10 via MCT. Worked fine and compleated with no problems. Would not work with an install.wim. Would exceed the 4GB maimum size for a file with FAT32.
    Last edited by Ztruker; 20 Mar 2019 at 16:52.
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  9. blueskyler's Avatar
    Posts : 118
    windows 10
       #9

    yes i tested me too.

    the point is use the iso from MCT instead the direct iso download from Microsoft.

    MCT = install.esd
    Windows direct download = install.wim

    with the install.esd smaller of the install.wim you can also use rufus for example and setting fat32 as system file for uefi boot :)
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  10. Ztruker's Avatar
    Posts : 13,512
    Windows 10 Pro X64 20H4 19042.746
       #10

    With Rufus there is a chance of screwing up and getting a flash drive that you will not be able to install from. It's happend often which is why @NavyLCDR posted the manual instructions I then posted (with modifications) above. This will work with UEFI/GPT/CSM or BIOS/MBR.
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