Under Update product key section, click Change product key link.
Step 1: Click the Start menu and select Settings. Option 1: Change your product key to fix activation errors You need to sign in as an administrator to change the product key and activate Windows 10. Way 5: Change Product Key in Command Prompt.Way 4: Change Product Key in changepk.exe.Way 2: Change Product Key in System Properties.Windows 10 provides five simple methods to change the Windows 10 product key. The current product key may be invalid (pirated key), and you want to replace the current product key with a new key without having to reinstall Windows 10. It may be you want to change product key to upgrade your edition of Windows 10. There are many reasons to change your Windows 10 product key.
