How to Disable Taskbar Thumbnail Preview in Windows 7

Posted by John Larkin - August 7, 2015

A feature of Windows Taskbar is to display small thumbnails of opened windows. You will see thumbnails when you fly the mouse over a program’s icon on the Taskbar. But if you don’t want the taskbar to display thumbnails, you can disable the feature.

1. Hit Win + R keys to open the Run box.

2. Type “regedit” and click OK button.

3. In the Registry Editor window, navigate to the following location:


4. At the right pane, find out a file named as ExtendedUIHoverTime.
(If you can’t find it, you need to right click the background and click New then create new DWORD (32-bit) Value named ExtendedUIHoverTime.)

5. Double-click ExtendedUIHoverTime and make sure the Base is Decimal.

6. In the Value data, you can increase the hover delay to 5 seconds, type 5000. Type 10000 for 10 seconds and so on.

7. Exit the Registry Editor and logoff the system.

Though the method won’t help you completely disable the feature in Windows 7. But at lease it can put off the time of showing thumbnails. Besides, improperly changing the system Registry Editor can cause unexpected troubles. Hence, you should carefully perform these steps.

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