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

Discus and support Check to see if a computer has been previously upgraded to Windows 10 in Windows 10 Updates and Activation to solve the problem; 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... Discussion in 'Windows 10 Updates and Activation' started by thecritter99, Feb 27, 2017.

  1. 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!

    :)
     
    thecritter99, Feb 27, 2017
    #1
  2. Kaedon_ Win User

    how do I check to see if my computer has been hacked

    Hi, Lornalman

    Did you recently installed a program in your PC?

    Regards,

    Kaedon
     
    Kaedon_, Feb 27, 2017
    #2
  3. how do I check to see if my computer has been hacked

     
    LornaInman, Feb 27, 2017
    #3
  4. Bree New Member

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

    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...
     
  5. Kyhi Win User
    since any digital license is stored on MS activation server - one would have to install windows 10
     
  6. hawkman Win User
    hawkman, Feb 27, 2017
    #6
  7. 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!
     
    thecritter99, Feb 27, 2017
    #7
  8. Check to see if a computer has been previously upgraded to Windows 10

    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.
     
    thecritter99, Feb 27, 2017
    #8
  9. Bree New Member
    More useful info here...

    ShowKeyPlus
     
  10. Kyhi Win User
    showkey will show oem key or oem marker - not prior windows 10 activation, if windows 10 removed
    Unless it came with windows 10
     
  11. 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)
     
    thecritter99, Feb 27, 2017
    #11
  12. Kyhi Win User
    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
     
  13. Check to see if a computer has been previously upgraded to Windows 10

    Understood. Thanks for your reply (and the one on the other thread).
     
    thecritter99, Feb 27, 2017
    #13
  14. Kyhi Win User
    windows 8 and up - supports booting from VHD
    create a windows 10 VHD on n external HDD and make the external HDD bootable..

    Boot from the ExHDD and activate windows 10 - if the activation goes through > then you can safetly upgrade that PC's HDD
     
  15. NavyLCDR New Member
    If the computer has a MS COA (Certificate of Authenticity) sticker on it with a Windows 7 product key, you should still be able to activate a matching Windows 10 on that computer by changing the product key to the one on the COA. If there is a Windows 8 product key stored in BIOS, the Windows 10 installation should pick that up automatically and activate automatically.

    Again, we don't know when MS is going to turn off this capability, but they have not yet.
     
    NavyLCDR, Apr 5, 2018
    #15
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Check to see if a computer has been previously upgraded to Windows 10

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