Windows 8 and 8.1 Forums


Lost product key after performing system refresh in 8.1

  1. #11


    Posts : 8
    windows 8.1


    Ok, here's my current situation.

    I have a legitimate version of windows 8.1, with a product key that used to work but now doesn't after doing a system refresh, possibly due to some sort of corruption of system files
    I want to activate my copy of 8.1 so I can upgrade to windows 10
    I downloaded an ISO of windows 10, but my 8.1 product key doesn't work with it
    I'm now trying to do a clean install of 8.1, so I can use my key to activate it, then use the activated 8.1 to upgrade to an activated windows 10
    Microsoft's 8.1 media creation tool isn't working, and I can't find an ISO of 8.1 that I can download from anywhere else, and my computer came with 8.1 already installed, so I don't have an installation disk either.
    When trying to install 8.1 from here, I get "This product key cannot be used to install a retail version of Windows 8.1"

    If I can't get anything else to work, I'll try loading a system image from when the product key was still working, and see if I can run the windows 10 installer from there.

      My System SpecsSystem Spec

  2. #12


    Central IL
    Posts : 3,468
    Linux Mint 17.2


    Lost key. Your only choice is to pay for Windows 10.
      My System SpecsSystem Spec

  3. #13


    If the computer came with with Windows 8 or 8.1 then the key is embedded in the bios and should be read from there when you reinstall.
      My System SpecsSystem Spec

  4. #14


    Central IL
    Posts : 3,468
    Linux Mint 17.2


    I am thinking that they used a non-OEM version Ztruker. I have Pro on both machines, and due to different key than 8 that came with them. 10 required me to keep 8 activated. The only issue that I have come across is to reinstall our Brother Laser software and do a Repair on Office 2013. Other than that, it was smooth sailing.
      My System SpecsSystem Spec

  5. #15


    Posts : 8
    windows 8.1


    I ended up restoring from a system image from when the product key was still working, then installed and activated windows 10 from there.
      My System SpecsSystem Spec

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Lost product key after performing system refresh in 8.1
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