Windows 7: Notification items always missing after restart

Hi..

Anybody can help me? My notification items always missing even though i already set it properly at customize notification area. also already use delete registry method, like this
CLEARING THE TRAY ICON HISTORY

> run 'regedit.exe'
>goto key 'HKEY_CURRENT_USER\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion \TrayNotify'
> delete keys 'IconStreams' & 'PastIconsStream'
> start task manager, go to processes and kill explorer.exe
> go to applications in the task manager, hit new task and type 'explorer.exe'
> explorer will now reboot and, your icons should return.

when i do above method, all my notification icon suddenly appear, but after restart the laptop, the same problem persist. Still missing the important notification items such as network, volume,power n action center.



How can i solve this problem? anybody can help me?


EDIT : Nobody able to help me?