Some function keys and keyboard shortcut keys can not work correctly. You may find that when pressing function key, its function will be triggered twice. For example, the audio sound is still unmute when you try to mute audio sound by pressing combination of Fn key and F9 key. (The way to disable audio sound varies from different NB models. To know further information, please refer to user manual that dedicated to your NB)
LastUpdate : Tue, 22 Dec 2009
Answer
An error in certain hook logic in Windows explorer of Windows 7 causes Windows 7 send two commands every time you press a function key or keyboard shortcut key. Please visit Microsoft support website and download hotfix from given link below. http://support.microsoft.com/hotfix/KBHotfix.aspx?kbnum=975741&kbln=en-us
