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Konstantinos Tsoukalas

Konstantinos is the founder and administrator of Since 1995 he works and provides IT support as a computer and network expert to individuals and large companies. He is specialized in solving problems related to Windows or other Microsoft products (Windows Server, Office, Microsoft 365, etc.).


  1. Keynes
    September 15, 2022 @ 10:53 am

    Thanks, really nice to get the info.


  2. Dom
    January 1, 2021 @ 10:08 pm

    After upgrading to Windows 10 from Windows 7 Ultimate can the original key be retrieved?


    • lakonst
      January 4, 2021 @ 10:26 am

      No, it cannot!


  3. Larry
    June 18, 2017 @ 8:19 pm

    I had a refurbished laptop with Windows 7 Home Premium but the Product Key sticker on the bottom was no longer valid. But Your "How to retrieve the Windows 7, Vista or XP Product key from registry: Using Belarc Advisor did the trick.


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