A fantastic new feature of Windows 7 is the Live Preview.  This is similar to the Dock in Mac OS x.  The Live Preview allows you to view the contents of the window without actually opening or maximizing it.  Here is a little tweak to the responsiveness of the preview.

The Live Preview Delay determines how long you must hover over a thumbnail preview before you the preview of the windows contents are shown.

Here is how you can customize the Live Preview hover delay:

Click on the Start Button, type in regedit and hit Enter.

Browse to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced

Right click on Advanced and select New DWORD and name the new value “ThumbnailLivePreviewHoverTime“.

Right click on ThumbnailLivePreviewHoverTime and select Modify.

Switch to Decimal base and enter in your new number in milliseconds. 1000 = 1 second. Anything larger than 0 is a valid value. 

 Once changed click OK and restart your computer.

You will notice the change in response time.

Tags | Windows 7