How To Activate Windows 10 Using Windows 7 or 8.1 Product Key

Microsoft has finally responded to the user feedback in the form of recognizing Windows 7 and 8.1 product keys to activate Windows 10 directly after the installation. Now you can just perform a clean install and then use the key for activation – i.e. no need to perform an upgrade. With Windows 10 Threshold 2 update, Microsoft has done something that people demanded from the very first day