Download and activation: The first way: Download and install Windows 10 Professional. Open system “Control Panel” – “All Control Panel Items” – “System”, and click “Activate Windows” & “Change Product Key”. Click “Activation” and enter your Windows 10 Pro key. The second way: Download and install Windows 10 Pro Professional. Right-click “Start Menu”, choose “System”. Click “About”, then Click “Change Product Key” or “Upgrade Your Edition of Windows”. Click “Change product key” and Enter your Windows 10 Activation Key.
