This is a Windows 10 issue related to the applications having their buttons removed by DF from the Windows taskbar. We haven't found a way around this, but as a workaround, you can change the Taskbar Mode (Settings > Taskbar tab) to one of the "Windows taskbar shows all" options. In addition to doing that, as you mentioned, you could replace the Windows taskbar with the DF taskbar. It's not a supported feature, but should work on most systems. See the steps in post #6 here: https://www.displayfusion.com/Discussions/View/anyway-to-make-the-df-pro-taskbar-override-the-windows-taskbar/?ID=3d0cad5b-2ab0-4b2d-acbc-cd2b45389c38#6