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How To Find And Use Windows 10 Product Key After Upgrading From Windows 7/8

Windows 10 is available as a free upgrade using your current Windows License. This offer is available for the next one year for Windows 7 and Windows 8/8.1 users only. After that, you will need to buy Windows 10. After upgrading to Windows 10, you might think which product key is being used to activate your new installation of Windows 10.

In this article, we will discuss different possibilities of finding and using your Windows 10 product key in the future. This article will answer some of the most important questions regarding the use of Windows 10 product key after you upgrade from your previous Operating System.

Finding the Windows Product key after upgrading

First of all, let it be clear that although you may be able to upgrade to Windows 10 using your pirated version of Windows 7 or Windows 8 but it will not help in reinstalling Windows 10 legally using the same product key.

Magical Jelly Bean Keyfinder is a small utility which is used to find the currently installed Windows product key. The premium version of Keyfinder can be used to extract the details including product keys, licenses etc. of more than a thousand popular programs. We will use the free version of Keyfinder to find the Windows 10 product key after upgrade.

Download Magical Jelly Bean Keyfinder

Simply run the program after downloading and it will show you the licensing information of your Windows OS including the edition of Windows installed, part no., Product ID, CD Key, Computer name, registered owner, organization etc.

Magical Jelly Bean Keyfinder finding Windows 10 product key

You may also use ProduKey utility to find your Windows 10 product key.

Free Windows 10 upgrade limitations

Now that you have your Windows 10 product key, you can clean install Windows 10 again on the same PC using the same product key. Infact, Windows will automatically activate your license after installation of Windows 10 on the same hardware.

The free Windows 10 upgrade license is limited to only the same hardware on which it was upgrade installed for the first time. If you have made any changes to your hardware, you will need to contact Microsoft Support for allowing your new hardware to be licensed under your current upgrade.

Can I use the same Win10 product key if I change my PC?

Unfortunately no. You can’t move your Windows 10 license to another PC. Normally OEM licensed products which usually come pre-installed in your PC are restricted to be used on that particular hardware only. If you have purchased a retail license of Windows 10, then you will be able to port between different PC but only one running PC is allowed per license.

Windows 10 upgrade acts as an OEM license and is available only for that particular PC on which it is installed for the first time.

If you have any other question regarding the use of Windows 10 product key and license, feel free to comment below.

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About the author: Usman Khurshid is a seasoned IT Pro with over 15 years of experience in the IT industry. He has experience in everything from IT support, helpdesk, sysadmin, network admin, and cloud computing. He is also certified in Microsoft Technologies (MCTS and MCSA) and also Cisco Certified Professional in Routing and Switching. Reach him at Twitter @usmank11

{ 2 comments… add one }
  • Theresa koekemoer April 9, 2019, 2:21 PM

    Hi, I bought a new Laptop in 2014/5. It had windows 8 on then.I have upgraded it to windows 10. In 2018 I had to run a dos program that only runs on Windows 7 32 bit. I took my laptop to a local computer center, and ask them to back up my windows 8 and load me the windows 7. With long story’s they never gave me the back up. How can I retrieve that Product key and is it possible, if not what do I have to download to get windows 10 legally. I don’t think this windows 7 is legal. It is a 64 bit Windows 7. Please help me!!

    • Usman Khurshid April 19, 2019, 8:21 PM

      If you have upgraded from Windows 8 to Windows 10, you should have a digital license of Windows 10 attached to that particular device. Installing the same edition of Windows 10 will activate it automatically. You should consult Microsoft for further confirmation.

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