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    YourNumbr1Fan is offline
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    Create Windows 10 .iso After July 29th Upgrade

    Thanks to Microsoft Community 'MVP' Andre Da Costa's post here, I thought I would re-post the technique he outlined concerning how to create a full Windows 10 .iso from the .ESD that can be found in the C:\Recovery image folder (your location for this file may be different, depending on the drive-letter Windows is installed on) after the July 29th upgrade. Very useful for those who might want to do a clean-install of Windows 10, and for recovery/re-install. This knowledge may be old-hat to some of you uber-techies, but will surely be helpful to many others.

    Without further ado, here's the method to creating a Windows 10 .iso using the .ESD that'll be placed on your hard-drive after the upgrade.


    Download ESD Decrypter 4.7

    You can use NTLite as an alternative to convert the .ESD file into a .ISO


    Extract esd-decrypter-wimlib-4.7z to a folder.


    Attachment 70248


    Put the appropriate .ESD file you downloaded into that same folder.


    Right click decrypt file in the same folder and click Run as administrator


    Attachment 70249


    Select option 1


    Hit Enter


    Wait


    When complete, burn to a blank DVD or create a bootable copy on a USB thumbdrive.


    Preparing the .ISO file for installation.


    See these instructions for burning .ISO files in Windows 7 or later


    You can also use the Microsoft USB/DVD Tool, which is recommended for Windows XP users.


    After obtaining the .iso file you use the Microsoft .iso to USB/DVD tool to create a bootable DVD or USB (requires a blank DVD or USB flash stick of at least 4 GB).


    Attachment 70250


    For UEFI based systems


    If your computer is UEFI based, these are normally systems that come pre-loaded with Windows 8 or later, you will need to prepare the ISO file for such a configuration or you will receive an error message during setup. The thumbdrive needs to be formatted as FAT32 and use the GPT partitioning scheme. To do this, you need to use Rufus, a small tool you can download for free.


    Attachment 70251

    After you have installed Rufus:


    Launch it


    Select ISO Image


    Point to the Windows 10 ISO file


    Check off Create a bootable disk using


    Select GPT partitioning for EUFI firmware as the Partition scheme


    Choose FAT32 NOT NTFS as the File system


    Make sure your USB thumbdrive in the Device list box


    Click Start


    Close when complete

    --------------------------------------------------------------------------------------------------------------------------------------------------

    * Concerning license-key for non-OEM installs/upgrades (as far as I can gather from official sources):

    You start with a valid licensed copy of Windows 7 or Windows 8 on your computer.


    You upgrade to Windows 10 either by Windows Update or by offline ISO.


    At this point, the ID of your computer, the one that Windows normally uses for activation, is registered on the Microsoft activation system. They know from this point forward that your computer, with that ID, is allowed to run a copy of Windows 10


    If you want a clean install at this point, you can simply boot from the ISO, erase what you already have there and install. The activation will happen automatically since the ID of your computer is already registered as a valid Windows 10 computer. No need for a key.


    And since the ID of your computer is registered as a valid Windows 10 computer, you can reinstall even after the offer expires. The only important thing is to upgrade during the 1 year free offer so that your computer is ID'd.
    Last edited by YourNumbr1Fan; June 4th, 2015 at 06:12 AM.



 

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