In the task bar, there are hidden inactive icons in notification area, sometimes some software are uninstalled, there still remain their shadows. So how to completely remove the registry so that we can get rid of those “shadows”? Here operate the steps with me! First, in the Start menu, right click and select properties. Open the property. Then click Customize to enter custom notification, and here we can set to hide or display icons. Next let’s look at those software we have already removes, icons still there!