The product key is in the confirmation email you received after buying your digital copy of Windows. Microsoft only keeps a record of product keys if you purchased from the Microsoft online store. You can find out if you purchased from Microsoft in your Microsoft account Order history. If you upgraded to Windows 10 for free from Windows 7 or Windows 8. If you bought Windows 10 or Windows 11 Pro upgrade in the Microsoft Store app, you'll receive a digital license instead of a product key in the confirmation email that was sent to confirm the purchase.
That email address MSA will contain the digital license. You can use the digital license for activation. Your product key is available through the web portal for your program.
For more information, see Volume Activation for Windows A product key is usually required when uninstalling or reinstalling Windows 7 or Windows 8. Generally, if you bought a physical copy of Windows, the product key should be on a label or card inside the box that Windows came in. If Windows came preinstalled on your PC, the product key should appear on a sticker on your device.
To ensure your product key is genuine, see How to tell your software is genuine and How to tell your hardware is genuine. If you are using Windows 10 PowerShell , the process is similar. Type this command at the prompt to reveal the product key as shown in Figure B. As you might imagine, the product key is stored in the Windows 10 Registry File, so it is possible to find the code there if you know the right key.
Type "regedit" into the Windows 10 desktop search and select the appropriate item in the results. Navigate to this key:. Note: In my case, the Windows 10 product key displayed by both the command prompt and PowerShell methods are the same. In the registry example, however, the product keys is different.
The best explanation I can suggest is that because I upgraded from Home to Pro on the example PC, the product key displayed is for the upgrade to Pro or vice versa.
If you have a better solution, please let us know in the discussion. There are third-party vendors offering applications that can locate and display your Windows 10 product key as well, but they essentially do the same thing we did here without involving someone else's programming and potential security issues.
Asked 9 years, 1 month ago. Active 1 year, 11 months ago. Viewed 66k times. Improve this question. Drew Chapin. Drew Chapin Drew Chapin 5, 11 11 gold badges 44 44 silver badges 66 66 bronze badges. However, I think I remember reading that later on e. From user BWhite : support. Add a comment. Active Oldest Votes. The code has three known components: An actual serial number Verification data using modular math A checksum CRC for typos There are several good references to how product keys are utilized.
Improve this answer. Synetech Fergus Fergus 1, 14 14 silver badges 18 18 bronze badges. Miles Wolbe Miles Wolbe 9 9 silver badges 10 10 bronze badges. Canadian Luke Windows key checker refers to the tools used to check your product key of Windows systems. It's a good way to judge whether your Windows is genuine or not. According to Microsoft, after you bought a copy of Windows, the corresponding product key will be kept on a label or card inside the box.
But what is a Windows product key indeed?
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