Complete uninstallation of Flash Player on Mac

Hi all,

I am using Flash Player 10 version in my Mac 10.8, I want to uninstall it and install the latest version(11). After Uninstalling also I am getting update preference window while installing latest version.

I have deleted flash cookies at below locations:

/Library/Internet Plug-Ins/Flash Player.plugin/

/Library/Internet Plug-Ins/flashplayer.xpt

~/Library/Preferences/Macromedia/Flash Player/

~/Library/Caches/Adobe/Flash Player/

Still I am getting update window while installing latest version.

Want I need to do to uninstall older version completely from my mac so that I should not get update preference window while installing latest version.Please respond..its an emergency in my requirement.

Thanks in advance..