Speed up the display of thumbnails on the taskbar

One of the nicest things about the taskbar is that when you hover your mouse over the icons in it, you can see thumbnail previews of all open windows for each of those applications. When you do so, there is a slight delay before the thumbnail appears. But you can make the thumbnails display more quickly by using a Registry hack.

Note:  Be very careful while editing registry. Serious problems might occur if you modify the registry incorrectly. Therefore, Backup your System registry beforehand. Visit: Backup Registry in Windows 7

1. Click on Start > Run OR press Windows-key+R.
2. Type regedit in the field and click OK. [You must have Administrator access].
3. Now Navigate to the following registry:
4. HKEY_CURRENT_USER\Control Panel\Mouse.
   Double-click MouseHoverTime. The default value you'll see is 400, which means 400 milliseconds. Type in a new, smaller value say 150.
5. Then click OK and exit the Registry Editor.
6. Log off or restart your computer for the change to take effect.

Posted in: Window's Trick's