Hello. I'm sorry for my bad English. On PC is installed Windows 10 PRO (upgrade from Windows 8.1 Pro - VL key) and it´s activated. I need install Windows 10 HOME. Will be a problem after installing activation , once the mechanism is in MS HW ID registered the PRO version? Installation would take place in the form of a clean installation of Windows 7 Home Premium , activation and subsequent upgrade. It will activate HOME version , when it was activated version PRO?