i have a HP desktop PC with windows 8 OEM, i want to upgrade the motherboard, i know that i cannot run my windows 8 OEM after installing a new motherboard and that i will have to buy a new copy of windows 8, i just want to know a few things 1) what things do i need to backup (such as games, settings and other things)? 2) i have a copy of Microsoft office 2010 that i have installed do i need to re-install it when i change the motherboard?, any help with be greatly appreciated, if there are any other things i should know before installing a new windows 8 please let me know, as that i just want to continue using my PC as it was just with a new motherboard, thank you