
In the case, you recently made significant hardware changes to your PC, and Windows 10 won't activate, you can use the Activation Troubleshooter to re-activate your copy of Windows 10.Īlthough this guide is specific to Windows 10, the Control Panel, slui.exe, and slmgr.vbs methods that we're showing you here will work to change the product key on Windows 8.1 or Windows 7.

If you're trying to upgrade the operating system by purchasing a new license from the Windows Store, everything regarding the product key will be handled automatically for you.Īlso, remember that you must be signed in with an administrator account to change your system's product key, and you'll need an internet connection to complete the activation. Step 1: Open Run by pressing Windows key + R on your keyboard. While for the most part, you'll be using the Settings app to change the product key on Windows 10, if the option isn't available or if you're looking to create a script to change the product key on your computer, it's good to have different alternatives. How to activate Windows 10 for free Method 1.
