Windows 10 free upgrade deadline has expired, but can we still activate Windows 10 using a Windows 7 or Windows 8 Product Key for free?
Microsft said that Windows 10 free upgrade stopped at 29/07/2016, so it did. Now you can't see the upgrade icon on your taskbar anymore, but do you have to pay $149 to upgrade to Windows 10? Not necessarily so far as long as you have the correct edition of Windows 10 TH2(1511) Installer ISO. Just run a clean Windows 10 install and use your Windows 7/8 Product key, you can still activate your new Windows 10. (Tested on 31/08/2016)