I've yet to see this a problem on stock W10 installs. To discuss this what's not stock?
Does it work OK in another user account?
There is a problem with the Win 10 taskbar and start buttons, neither of which are working properly. I have found my system is constantly refreshing but can't identify the software that is causing the problem. The Win Shell that has been identified as a culprit is not active on my tasklist so I'm not sure what is doing it