Of course, there is a catch, if you use the default product key to upgrade, Windows 10 won’t activate, as you need to actually pay Microsoft to get a valid product key. In this guide, you’ll learn the steps to upgrade Windows 10 Home to Windows 10 Pro using the default product key.
How to upgrade to Windows 10 Pro
Change product key to upgrade Windows 10 If you have a Windows 8.x Pro product key, it will also work to activate Windows 10 Pro. Although you can always get a Windows 10 Pro product key and then upgrade, sometimes, you want to see if your computer will support the upgrade or you want to test the operating system before making the purchase, and using the default product key, you have at least another option. All content on this site is provided with no warranties, express or implied. Use any information at your own risk. Always backup of your device and files before making any changes. Privacy policy info.