Call the mentioned toll-free number, and an automated phone system will ask ... make sure you are signed as an administrator and follow the steps below. That's all there is to activate Windows 10 and ...

If it is not activated, you will see an Activate button, click on that, use your Windows 7 or Windows 8.1 product key and you will be good to go. Related: Microsoft Windows 10 free download full ...

When you have not bought a genuine copy of Windows 10, sometimes, the system will flash a message ‘Activate Windows’. There are some simple ways in which you can activate your Windows 10.