I am currently using StartIsBack on Windows 8 Pro installed from a DVD purchased from a retail computer shop. When the free upgrade to Windows 8.1 becomes available, I will be doing a clean install of this from disk. Will StartIsBackPlus be free as an upgrade in this situation and loaded as a stand alone installation? Can I use the same activation key for the Plus version that I purchased with the original StartIsBack? Or do I need to apply for a new one when I get the final release of StartIsBackPlus?