1. aravindhghosh's Avatar
    I upgraded Windows 10 Pro from Windows 8.1 Pro and it is activated. Now I want to perform a clean Install by windows 10 ISO and completing clean Install how do I reactivate my Windows 10 Product. I lost my seriel key of my Windows 8.1, Is there Digital entitlement works for it. please help thanks in advance.
    12-29-2015 12:29 AM
  2. charlatan1978's Avatar
    If you have activated Win10 previously then a clean install will reactivate.
    12-29-2015 02:49 AM

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