Download the utility (link at the end) and run it. It’s exceptionally popular and it lets you find the activation key for over 1000 different programs, including a Windows installation. You will need a small utility called ProduKey. This is simply a way to help you find a product key that you’ve legally obtained. Here’s how.īefore you start, we’d like to make it perfectly clear that this isn’t going to help you get a pirated copy of Windows 10. What happens is that you’re secretly assigned a new product key for your new operating system, and you need to find it before you initiate a clean Windows 10 install. After that upgrade, that key is not upgraded itself so that it will work on Windows 10 clean installs. When you upgrade to Windows 10 from an older Windows version (one that lets you upgrade for free), you rely on the operating system’s old (and authentic) product key to carry you through the upgrade.
We’ve already tried using the Windows 7 (or 8 if that’s your case) key during a fresh install, and it didn’t work. After upgrading your Windows 7 or Windows 8 installation to Windows 10, you might be wondering what product key you will use in case you want to do a clean install of Windows 10.
