Install cannot verify product key

Discussion in 'Windows 8' started by Pranksters, Nov 21, 2014.

  1. Pranksters

    Pranksters MDL Novice

    May 28, 2013
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    long time lurker, first time posting!

    Purchased from MS Windows 8.0 pro x86 preview release, have used kms activation a few times since to re-activate program, now trying to use pro 8.1 aio x86 and the install tells me the product can not be verified and the install is cancelled. What can I do to install 8.1 pro without re-formatting if there is any solutions?

    TIA
    pranksters
     
  2. s1ave77

    s1ave77 MDL Guide Dog/Dev

    Aug 15, 2012
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    Does it ask for a key or errors without?
     
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  3. Pranksters

    Pranksters MDL Novice

    May 28, 2013
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    no it does not ask for a key, I just click on set up and a screen comes up with preparing windows then the error msg pops up and sits there until you hit close.
     
  4. s1ave77

    s1ave77 MDL Guide Dog/Dev

    Aug 15, 2012
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    Does that mean you start install from within a running Windows? If yes, what Windows you're running and to what version you try to upgrade to?
     
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  5. Pranksters

    Pranksters MDL Novice

    May 28, 2013
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    yes I have 8.0 pro running and click on the 8.1 pro aio icon on my desktop
     
  6. s1ave77

    s1ave77 MDL Guide Dog/Dev

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    #6 s1ave77, Nov 22, 2014
    Last edited by a moderator: Apr 20, 2017
    Upgrade from an ISO is a bit tricky as it needs a specified ei.cfg file in the sources folder of that ISO.

    Yours would look:

    Code:
    [EditionID]
    Professional
    
    [Channel]
    Retail
    
    [VL]
    0
    Save as ei.cfg (NOTE: it needs the option to show extensions to be enabled in your system to do so). Copy the ISO content to a folder that is not on the system drive and add the file to the \sources\ subfolder. Start the Setup inside that folder ....

    The EditionID entry is the crucial part for that Upgrade-Way.
     
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  7. Pranksters

    Pranksters MDL Novice

    May 28, 2013
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    what happens if I burn to disc and reformat and stat up with the dvd rom, will it do a full install of pro 8.1?
     
  8. s1ave77

    s1ave77 MDL Guide Dog/Dev

    Aug 15, 2012
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    Fresh install will always work, only upgrade from that ISO requires the ei.cfg with matching EditionID entry.
     
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  9. Pranksters

    Pranksters MDL Novice

    May 28, 2013
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    Thank you very much for the info and your time, will do a fresh install and will advise on how I make out, again Thanks!