Understanding Aero Peek

by Allen Wyatt
(last updated September 10, 2018)

One of the features introduced in Windows 7 was called, strangely enough, Peek. This feature is actually pretty descriptive, as it allows you to "peek" through whatever is open on your desktop to see a buried window or the entire desktop.

As long as you have the Aero interface enabled on your system—which is the standard condition on most Windows systems—you can use Peek. (The Aero interface is enabled automatically when you personalize your system to use an Aero theme.) You can see if Peek is enabled by following these steps:

  1. For Windows 7, click the Start button, right-click on Computer, then choose Properties. If you are using Windows 10, type "This PC" (without the quotes) in the Search box and press Enter. In the Locations group of the Computer tab of the ribbon, click Properties. Windows displays the System portion of the Control Panel.
  2. For Windows 7, click Performance Information and Tools at the bottom-left corner of the screen. If you are using Windows 10, click Advanced System Settings at the far left of the screen. Windows displays the System Properties dialog box.
  3. For Windows 7, click Adjust Visual Effects. For Windows 10, click the Settings button in the Performance group. Windows displays the Visual Effects tab of the Performance Options dialog box. (See Figure 1.)
  4. Figure 1. The Visual Effects tab of the Performance Options dialog box.

Scroll through the list of settings looking for one entitled "Enable Aero Peek." This controls whether the Peek feature works on your system or not. Assuming you do want it enabled, make sure the check box is selected, and then click OK on each of the open dialog boxes to close them.

To use Peek, simply move your mouse pointer over one of the task buttons on the Taskbar. In short order (after about half a second) you should see the window used by that task appear on the screen, provided it was previously covered by other windows. When you move the mouse pointer off of the task button, the task's window again reverts to its previously hidden condition.

With Windows, you can also see the entire desktop using Peek by simply moving the mouse pointer over the Show Desktop button, at the right end of the Taskbar. (See Figure 2.)

Figure 2. The Windows 10 Show Desktop Button.

Note that with Windows 7, the words "Show desktop" are displayed when you hover the mouse over the small vertical bar at the very far right of the task bar.

You don't want to click the Show Desktop button; that will minimize all the open windows. Instead, just hover over the button and, in a jiffy, Windows fades all the open windows from view so you can see the desktop clearly. (And, helpfully, it leaves outlines of each window on the screen so you can see where they were before fading them out.) Move the mouse pointer away from the Show Desktop button and all the faded windows reappear.

If, for some reason, you cannot use Peek to display the desktop as just described, it could be because this particular feature is turned off on your system. (This assumes, of course, that Aero Peek is turned on, as already described at the beginning of this tip.) Here's how to make sure the feature is turned on:

  1. Right click somewhere within a blank area of the Taskbar. (Don't right-click one of the icons on the Taskbar; right-click an area that contains no icons.) Windows displays a Context menu.
  2. Choose Properties from the Context menu. Windows displays the Taskbar tab of the Taskbar and Start Menu Properties dialog box. (See Figure 3.)
  3. Figure 3. The Taskbar tab of the Taskbar and Start Menu Properties dialog box.

  4. Make sure the Use Aero Peek to Preview the Desktop check box is selected. (If the option is grayed out, it means that you are not using an Aero theme, so the Aero interface is not enabled.)
  5. Click OK.

If you are using Windows 10, perhaps an easier way to make sure the feature is turned is to type "Taskbar" (without the quotes) in the Search box. Windows displays the Taskbar section of the Settings dialog box. Make sure the "Use Peek to preview the desktop when you move your mouse to the Show desktop button at the end of the taskbar" button is turned on. (See Figure 4.)

Figure 4. The Taskbar section of the Settings window.

 This tip (13167) applies to Windows 7 and 10.

Author Bio

Allen Wyatt

With more than 50 non-fiction books and numerous magazine articles to his credit, Allen Wyatt is an internationally recognized author. He is president of Sharon Parq Associates, a computer and publishing services company. ...

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