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In Windows 7, when you hover over an application in your task bar, a preview is generated showing the contents of the application window.

Another option just displays the names of the windows.

Somehow, I've turned off the preview and it only displays the window names. How do I change it back?

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5 Answers

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Right Mouse Click on the taskbar, go to properties and on the first tab, make sure 'Show window previews (thumbnails) is checked.

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up vote 2 down vote

You need to enable Aero

Right click on your desktop -> personalize

Edit : Or you have recently installed an application that dosen't suport Aero, so you can't reenable it.

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I am using Aero. I think this is what actually happened... something I installed (can't remember now what it was) disabled it. Thanks! – y0mbo Oct 22 '09 at 20:30
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up vote 2 down vote

Right click on Computer » Properties » Advanced system settings » Advanced tab » Performance settings. Here, uncheck/check 'enable desktop composition'.

This will disable/enable preview of windows on the taskbar.

None of the Aero Peek settings or registry edits work.

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up vote 0 down vote

If it doesnt work it could be because of an old video card

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Not in this case... brand new video cards. – y0mbo Jun 25 '10 at 14:22
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up vote 0 down vote

Something else to add, you must be using an Aero Theme:

  • Right-click desktop > click
  • Personalize Select an Aero Theme

When I changed my background (thus my theme), the previews stopped.

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protected by nhinkle♦ Apr 26 '11 at 23:47

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