Windows reactivation after computer change

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  1. Posts : 7,484
    Windows 10 Home 20H2
       #11

    One product key can be used on only one PC.
    Steve C said:
    Can I build a new Windows 10 PC and activate it using my original Windows 8 Pro retail key? Will the old PC become deactivated if I continue to use it?
    Yes, and yes.
      My Computer


  2. Posts : 5
    Win 10
    Thread Starter
       #12

    dalchina said:
    Well, how many PC's do you wish to have activated simultaneously with one license?
    Sorry for late answer.
    I only need one active licence.
      My Computer


  3. Posts : 7,484
    Windows 10 Home 20H2
       #13

    Use your key to activate Windows on your new PC. The one on your old PC will be invalidated.
    Don't tell me you have lost your key.
      My Computer


  4. Posts : 5
    Win 10
    Thread Starter
       #14

    dalchina said:
    You may like to read through this carefully- it is not just about using the troubleshooter.
    Use Activation Troubleshooter in Windows 10
    OK, I went trough this thread several times.
    Please correct me if I'm wrong:
    If one wants to activate MSA on B computer, he needs to reinstall Windows 10 on A computer?
    After that, MSA on A will no longer be active so MSA can be activated on B?

    Matthew Wai said:
    Use your key to activate Windows on your new PC. The one on your old PC will be invalidated.
    Don't tell me you have lost your key.
    I have a Win 10 digital license that I picked up a few years ago when MS gave a free upgrade from 7 to 10.
      My Computer


  5. Posts : 35,545
    Win 10 Pro (21H2) (2nd PC is 21H2)
       #15

    The pattern would be to deactivate the key on the old machine and activate it on the new one.
    If the old one is no longer viable, and activation fails on the new one, you can contact your MS regional activation centre.

    I have a Win 10 digital license that I picked up a few years ago when MS gave a free upgrade from 7 to 10. This license is properly linked to my Microsoft account on my old PC.
    I assume this means you upgraded that Win 7 machine to Win 10.
    Some have commented that even if the original license was OEM, it seems MS is not concerned and transfer to a new PC has worked.
      My Computers


  6. Posts : 7,484
    Windows 10 Home 20H2
       #16

    66er said:
    If one wants to activate MSA on B computer, he needs to reinstall Windows 10 on A computer?
    After that, MSA on A will no longer be active so MSA can be activated on B?
    I did not have to use my MSA to activate Windows 10 on computer B after computer A died.
    I just had to use my Windows 7 key to do so.

    66er said:
    I have a Win 10 digital license that I picked up a few years ago when MS gave a free upgrade from 7 to 10.
    There is no need to use the digital license. Just use your Windows 7 key.
      My Computer


  7. Posts : 35,545
    Win 10 Pro (21H2) (2nd PC is 21H2)
       #17

    Umm.. I don't think we know if that was OEM or retail.. If the latter, yes...
      My Computers


  8. Posts : 7,484
    Windows 10 Home 20H2
       #18

    Umm.. I think we will know if that is the latter if the OP runs the following command:
    slmgr /dli
      My Computer


 

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