Windows 10: Not showing icons Not showing taskbar icon Task manager not opening start menu not opening

How I solve this problem

:)

 

Computer not showing desktop or start icon?

My computer is not showing the desktop icons or the start menu bar... everytime I want to open something i have to use the windows task manager. anyone know why this happens? also when i want to open My Computer properties or something it says I'm missing the RUNDLL32.EXE

 

Taskbar hides and shows itself after opening start menu.

Steps:

1. Using HDMI for a second monitor.
2. Open start menu using the icon.
3. Close start menu using the icon.
4. Click anywhere other than the task bars. (e.g. an open window, the desktop, even the first monitor's desktop)
   
5. Taskbar on second monitor slides down to be hidden.
6. Taskbar then immediately slides up to reappear.

If after closing the start menu (step 3), you click on the taskbar, then click outside the taskbar, this behavior does not occur.

Performing the steps on the main monitor's taskbar does not produce this behavior.

This has been happening for as long as I can remember using this laptop (~3years), with different nVidia drivers and Windows 10 updates.

 

Can't open task manager, start menu, action center. No wallpaper, taskbar icons either.

My wife's laptop doesn't have wallpaper or taskbar icons showing up. I also can't open start menu or action center. Task manager won't open either (I've tried right-clicking off taskbar menu and ctrl+alt+del). I'm including a picture of her computer (sorry
it's upside down...can't fix that either!) to show you what I mean. Any help would be greatly appreciated.