Win10's model and tech represents a lot of improvements for Microsoft, but essentially no direct benefit (and thus a switching cost) for Win7 users on older har

Win10's model and tech represents a lot of improvements for Microsoft, but essentially no direct benefit (and thus a switching cost) for Win7 users on older hardware, who are pretty happy with their system. Microsoft promised support until 2020. It didn't promise "support until 2020 but only if you upgrade your hardware after 2016". Any other course of action would have gotten them a lot of bad press and some lawsuits.