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  1.    28 Feb 2017 #1
    Join Date : Feb 2017
    Posts : 6
    Windows 10 Pro

    Check to see if a computer has been previously upgraded to Windows 10


    Hi all

    I have a burning question that I have not been able to find an answer to...

    How do I find out if a computer has been previously upgraded to Windows 10 from 7/8/8.1 and has a digital licence (after it has been restored to the original OS)?

    I've been in touch with Microsoft and their support is less than convincing.

    (Long story short, I have bought a job lot of laptops that have been restored to factory settings. Before I sell them on, it would be nice to have them running on Windows 10 for free (if they were upgraded by the original owners and subsequently have a digital licence, requiring no product key.) I don't want to install Windows 10 from scratch to find out I cannot activate it and I have deleted the old Windows OS installation and recovery partition).

    Thanks!
      My ComputerSystem Spec
  2.    28 Feb 2017 #2
    Join Date : Aug 2016
    S/E England
    Posts : 4,489
    10 Home x64 (1709) (10 Pro on 2nd pc)

    Quote Originally Posted by thecritter99 View Post
    I don't want to install Windows 10 from scratch to find out I cannot activate it and I have deleted the old Windows OS installation and recovery partition.
    Welcome to TenForums @thecritter99

    You could swap out the hard drive for a blank one and try a clean install on that. However, recent reports are that MS is still activating upgrades for free, despite the offer officially having ended. For how much longer is anyone's guess...
      My ComputersSystem Spec
  3.    28 Feb 2017 #3
    Join Date : Jun 2015
    Posts : 1,900
    Windows 3.1 to Windows 10

    since any digital license is stored on MS activation server - one would have to install windows 10
      My ComputerSystem Spec
  4.    28 Feb 2017 #4
    Join Date : Sep 2014
    Posts : 448
    10 preview 64bit

    Hi 99,
    As youve factory reset them,

    try this little checker compliments of Superfly
    not optomistic thou

    https://github.com/Superfly-Inc/Show...howKeyPlus.zip


    Roy
      My ComputerSystem Spec
  5.    28 Feb 2017 #5
    Join Date : Feb 2017
    Posts : 6
    Windows 10 Pro
    Thread Starter

    Thanks both for your replies. Am I right in thinking the licenses are embedded in the system BIOS for activation/verification purposes (and then validated with the activation server?) It would be very useful to detect if a digital licence is embedded in the BIOS's of my machines, although I suspect this is not possible!
      My ComputerSystem Spec
  6.    28 Feb 2017 #6
    Join Date : Feb 2017
    Posts : 6
    Windows 10 Pro
    Thread Starter

    Quote Originally Posted by hawkman View Post
    Hi 99,
    As youve factory reset them,

    try this little checker compliments of Superfly
    not optomistic thou

    https://github.com/Superfly-Inc/Show...howKeyPlus.zip


    Roy
    Roy, MASSIVE thanks for that - I think that is what I am after. I guess I am looking for an OEM key? Will play around with it and see if I can work out if the OEM keys are Windows 10 related.
      My ComputerSystem Spec
  7.    28 Feb 2017 #7
    Join Date : Aug 2016
    S/E England
    Posts : 4,489
    10 Home x64 (1709) (10 Pro on 2nd pc)

    Quote Originally Posted by thecritter99 View Post
    Will play around with it and see if I can work out if the OEM keys are Windows 10 related.
    More useful info here...

    If you bought a new PC running Windows, the product key will be included in the firmware in the case of Windows 8 or 10 - or as an OEM marker, in the case of Windows Vista or Windows 7
    ShowKeyPlus
      My ComputersSystem Spec
  8.    28 Feb 2017 #8
    Join Date : Jun 2015
    Posts : 1,900
    Windows 3.1 to Windows 10

    Quote Originally Posted by Kyhi View Post
    since any digital license is stored on MS activation server - one would have to install windows 10
    showkey will show oem key or oem marker - not prior windows 10 activation, if windows 10 removed
    Unless it came with windows 10
      My ComputerSystem Spec
  9.    28 Feb 2017 #9
    Join Date : Feb 2017
    Posts : 6
    Windows 10 Pro
    Thread Starter

    Quote Originally Posted by Kyhi View Post
    showkey will show oem key or oem marker - not prior windows 10 activation, if windows 10 removed
    Unless it came with windows 10
    Makes perfect sense. I guess Microsoft are the only ones who possess such information. Am I right?

    (Unless of course there is some way of seeking out the digital licence from the BIOS or whatever a Windows 10 upgrade leaves behind that the Microsoft activation server detects)
      My ComputerSystem Spec
  10.    28 Feb 2017 #10
    Join Date : Jun 2015
    Posts : 1,900
    Windows 3.1 to Windows 10

    MS uses a Hardware Hash for the PC to record activation
    Nothing to find on PC itself - only OEM marker, put there by OEM

    what you looking for is just NOT there
      My ComputerSystem Spec

 
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