_______ is a new feature introduced in Windows-7 which hides all open windows to show the desktop. Shortcut key to use this feature is

Question

Accepted Answer

The correct option is (2):
Aero Peek, Windows key + Space-bar

The feature you are referring to is *Aero Peek*, a key element of the Windows Aero graphical interface introduced in Windows 7. Aero Peek allows the user to quickly glance at the desktop without permanently minimizing all their open windows. When the user holds down the **Windows key and presses the Space-bar**, all open windows instantly become transparent, temporarily revealing the desktop underneath. This "peeking" functionality provides a fast, non-disruptive way to access gadgets or shortcuts on the desktop. The shortcut is a convenient alternative to moving the mouse to the slim, vertical "Show desktop" button at the far right end of the taskbar, which also activates Aero Peek.

The incorrect option is (1):
Jump list, Windows key + Shift

This option is incorrect because the *Jump list* feature is an entirely different functionality in Windows 7. A Jump list is a menu that appears when you right-click an application icon on the taskbar, providing quick access to recently opened files, tasks, or frequent destinations specific to that program. It has absolutely no function related to hiding windows or displaying the desktop. Furthermore, the shortcut **Windows key + Shift** is primarily used to move the currently active window to a different monitor in a multi-monitor setup, which is unrelated to the Aero Peek feature.

The incorrect option is (3):
Jump list, Shift+tab

This option incorrectly pairs the *Jump list* feature with the desktop hiding action. As explained previously, the Jump list is for application task management (recent files/tasks) and not for toggling the desktop view. The proposed shortcut, **Shift + Tab**, is a universal keyboard shortcut that typically performs backward navigation, such as moving the selection to the previous field or element in a dialog box or web page. It is not associated with any Windows-7 Aero feature or the desktop peeking function.

The incorrect option is (4):
Aero key, Shift+tab + Space-bar

This option uses an incorrect name and an incorrect shortcut. While the feature suite is called Windows *Aero*, there is no specific standalone feature officially named "Aero key" in the context of showing the desktop. The correct term for the action is *Aero Peek*. The complex shortcut combination **Shift + Tab + Space-bar** does not correspond to any standard Windows command, let alone the specific "peek at desktop" function. Thus, both the feature name and the shortcut provided in this option are inaccurate for the required operation.