Solved Aero Peek was not showing Desktop, fixed it.

[billu]

My Aero Peek was working fine (Windows 7 Ultimate) except not showing desktop. The checkbox on the taskbar properties asking "Preview Desktop with Aero Peek" was fixed, not changing.

So corrected it, now it's working. Just informing how I did it.

from this I got the registry entry for Aero Peek.

http://www.sevenforums.com/tutorials/20337-aero-peek-change-delay-time-preview-desktop.html

He has told to change the value or the registry Key HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced

Item : DesktopLivePreviewHoverTime

But it wasn't present in my box.
My computer's registry showed "DisablePreviewDesktop". I changed it's value from 0 to 1 in hexadecimal and it started working i.e, Aero Peek started showing desktop.

http://www.sevenforums.com/tutorials/838-aero-peek-turn-off.html

 

[Gandalf]

Thanks for the info.