I logged onto my laptop this morning and the taskbar is empty (excluding the "windows" icon on the left and the "notifications" icon on the right, which neither work when trying to click on).
The closest answer I read was to press the "windows" key and the "I" button but when I did, nothing happened.
(yes, the taskbar is not locked)
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The taskbar may be hiding at the bottom of the screen after being accidentally resized.
If the presentation display was changed, the taskbar may have moved off of the visible screen (Windows 7 and Vista only).
The taskbar may be set to "Auto-hide" (Windows XP with Service Pack 2 only).
The 'explorer.exe' process may have crashed.
Put the mouse pointer on the bottom border of your screen.
If the pointer turns into a double-arrow (double Arrow Pointing up and down), click and drag upwards.
If your taskbar isn't hiding at the bottom of the screen, try moving the mouse to the right, left, and top edges, looking for the double-arrow.
Press the Windows logo key and the P key on your keyboard to bring up the presentation display mode options.
Make sure "Computer Only" is selected.
Use the arrow keys to toggle between options and Enter to select the correct display mode.
Press the Windows key on the keyboard to bring up the Start Menu
Right-Click on the taskbar and select Properties.
Toggle the 'Auto-Hide the taskbar' checkbox and click Apply.
If it is now checked, move the cursor to the bottom, right, left, or top of the screen and the taskbar should re-appear.
Repeat step three to return to your original setting.
Open the Task Manager using either Ctrl+Alt+Del or Ctrl+Shift+Esc.
Click the File menu and select New Task.
In the dialog box, type 'explorer.exe' to restart the process.
DELL-Robin DSocial Media Support#IWork4Dell