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  1. Joined : Jul 2015
    Posts : 6,849
    Windows 10 Pro
       2016-07-21 #410

    Mike100 said: View Post
    If I do a clean install on another HDD but then decide to put back the original Win 7 HDD, will Microsoft be aware of that? IOW there's a break in continuity because the upgrade process has left that original drive. I cannot just click on "Restore" to let the whole system know what is going on. I'm concerned since there would not be a "Restore" function that something will not register properly. Does my explanation make sense?
    Windows activations are stored on Microsoft activation servers based upon the Installation ID. The Installation ID is made up of the Hardware ID - which uniquely identifies the computer it is installed on, the Product ID which identifies the version of Windows installed, and the Product Key - which identifies the basis for the license/activation. Typically, every time Windows boots it re-calculates the Installation ID. As long as the Installation ID is the same as the last one that was calculated, Windows just stays activated without any additional action (such as contacting Microsoft activation servers).

    Even if Windows did contact the Microsoft activation server, as long as it is on the same computer the Installation ID will match what is stored at Microsoft and the activation code will be returned. The Windows 7 activation information does not get changed in any way when the upgrade to Windows 10 is done. The Windows 10 activation is also stored at Microsoft when the upgrade is done. So, if the same Windows 7 on the same computer does contact Microsoft, it retrieves the Windows 7 activation code. If the same Windows 10 on the same computer does contact Microsoft, it retrieves the Windows 10 activation code. It does not matter how many times or how often this occurs so long as it is the same computer.

    Move the hard drive to a different computer - the Hardware ID changes, therefore the Installation ID changes, Windows revokes it's local activation and contacts Microsoft. Depending on the type of product key (retail vs. OEM) and the number of times new activation has been requested, either a new activation code will be issued for the new computer - or a refusal code will be returned and the user will be prompted to call Microsoft for activation.
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  2. Joined : Jul 2016
    Posts : 4
    Windows 7 Ultimate 64 bit
       2016-07-22 #411

    NavyLCDR -

    Thanks for the detailed explanation.
      My System SpecsSystem Spec


  3. Joined : Jan 2014
    Central West NSW Australia
    Posts : 413
    7 and 10 on various machines
       2016-07-22 #412

    Navy I bought a 10 OEM and am going to install it and not use the 7 key because the 10 OEM has it's own code now in the event of me swapping out the drive for any reason the 7 key will still be in force?

    I don't expect that will happen often at all but it is a backup system in emergencies as I am getting ore used to suing the 10 now.
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  4. Joined : Oct 2013
    Posts : 17,367
    64-bit Windows 10 Pro build 15007
       2016-07-22 #413

    Hello John,

    Yes, you will still be able to use W7 since no other installation is activated with its product key.
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  5. Joined : Jan 2014
    Central West NSW Australia
    Posts : 413
    7 and 10 on various machines
       2016-07-22 #414

    Thanks mate I thought that would be the case
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  6. Joined : Oct 2013
    Posts : 17,367
    64-bit Windows 10 Pro build 15007
       2016-07-22 #415

      My System SpecsSystem Spec

  7.    2016-07-25 #416

    Since Microsoft creates a digital license, how can the Windows 10 installation be moved to a new PC when the old one dies?
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  8. Joined : Apr 2015
    Posts : 9,142
    W10Prox64
       2016-07-25 #417

    andrew124C41 said: View Post
    Since Microsoft creates a digital license, how can the Windows 10 installation be moved to a new PC when the old one dies?
    Unless you've purchased a retail W10 license, it can't.
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  9. Joined : Jan 2014
    Central West NSW Australia
    Posts : 413
    7 and 10 on various machines
       2016-07-26 #418

    andrew124C41 said: View Post
    Since Microsoft creates a digital license, how can the Windows 10 installation be moved to a new PC when the old one dies?
    Personally I bought a discounted copy (genuine) of 10 to load my work laptop on a new drive so I can keep 7 on one drive and 10 on another so once one has the media a phone call to Microsoft is all that is needed in that scenario to use either key. I think you need to look at what your options are and what you want to end up with eh?
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  10. Joined : Oct 2014
    Posts : 6
    Win 10 Pro
       2016-07-30 #419

    I have a question, Say I have an activated Genuine windows 7 computer. That I want to change to windows 10. Does the gatherosstate.exe to create .xml then wipe and clean install windows 10 from dvd still work after July 29/16 ?
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