Windows 7 - Adjust Taskbar Hover Delay

Here is how to adjust the amount of time you need to hover over the taskbar button before the preview (or button text appears). I found that the hover time was too short out of the box.

1. Click on the Start Button and type in Regedit and hit Enter.
2. Navigate through HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced.
3. Right click on Advanced and select New DWORD and name the new value "ExtendedUIHoverTime".
4. Right click on ExtendedUIHoverTime and select Modify.
5. Switch to Decimal base and enter in your new number.  The default is 400 milliseconds. I like to set mine to 100 for a 100 millisecond delay. (Digital Q&A: 20000 is right for me).
6. Once changed click OK and restart the explorer process or restart your computer.

Thanks to WinGeek - Adjust Taskbar Preview Hover Delay