I've got W8 Pro OEM on DVD purchased from retail computer shop. I haven't bothered with 8.1 because I'm using StartIsBack with Modern turned off completely, and with direct boot to desktop.
1. If I did install 8.1 as a standalone or straight over 8, what would happen to the Start Menu button from StartIsBack?
2. Are there any major improvements that I'm missing out on aside from Modern improvements?