WinRAP ( Windows Running Applications Protector ) is a utility which allows you to hide windows application, and hide programs which are running on your screen. It will instantly hide all or certain programs on your screen with a key press.
It also has a lock feature to forbid others from accessing this utility temporarily.
The hidden application can also be restored exactly to the same state before it was hidden.
Besides that, it can clean your desktop by hiding unneeded windows applications while leaving them running.