You do need to have Start10 installed and running, and I believe you need to have the "Windows 7 style" selected within Start10's main page.  I don't have Start10 installed any longer, but I seem to remember another setting lower on that same main page that referred to "Use WindowBlinds skin", I'm thinking that was for either the Start Button or the Taskbar, you might look for that.

Glad that took care of it.

I realize I said "Start10" - you can use either Start10 or Start11 on Win10, either will work, in case you also have access to Start11 and would prefer to use the newer program.