
To my horror, what I now know is called the “Shell” – the explorer view but also the lower task bar and my desktop, the clock, the Windows button – all disappeared.

I opened Task Manager (see my article on Task Manager if this is new to you) using control-alt-delete, selected Windows Explorer and clicked End Task. I was trying to rename a file in the folder view of Windows Explorer and everything froze. This was a question that arose for me the other day.
