I already showed you how to customize the Taskbar hover delay so next let's customize the live preview hover delay that determines how long you must hover over a thumbnail preview before you are shown a live preview of the Window.
Here is how you can customize the Live Preview hover delay:
- Click on the Start Button, type in regedit and hit Enter.
- Navigate through 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 the explorer process or restart your computer.






I would need one more tweak to be really happy. I suppose you are already working on it but I'm asking just in case: Could it be possible to adjust the delay between the moment you hit 'Alt Tab' and the moment the first preview shows up. There's a huge delay that, I think, is very anoying. It's basically the same delay as the one when you mouse over the bottom right corner of the screen in order to peek at the desktop. This delay is far too long.
Thanks!!!!!!!
thanks for the other tips
Greetings.
Can the length of time the thumbnail popup is shown be shortened? It takes too long to timeout.
Ideally, the thumbnail preview would disappear instantly if my mouse isn't over the taskbar icon or the preview itself.