How to get wide Windows 10 adoption
If MS really wants to make Windows 10 quickly adopted, then work into it the ability to do in place upgrades from ALL versions of WIndows from XP Forward! Yes, there are always going to be incompatible applications, BUT MS KNOWS which ones they are. Give the user a full list of what WILL and WILL NOT auto transfer to the new install. That would be the biggest step to getting XP out fo the market.