I am having problems getting the toolbar to appear and stay when I click on Internet Explorer (11). This problem occurred several months ago when an update to Windows 10 was installed. When it isn't present I have to go into View, then Toolbars and recheck the Norton Toolbar. I always have "Lock the Toolbars" checked. The toolbar comes up every time the computer is restarted, but only does this for several days, then disappears and I have to repeat the above process. How can I get the toolbar to stay on permanently?