After i have this prob.. I did click repair the Avast before doing it on system start up.
I want to be clear.. This is the duplicate name on system start up.
C:\progra~1\ALWIL~1\Avast5\avastUI.exe/nogui
C:\progra~1\ALWIL~1\Avast5\avastUI.exe/nogui
I have that 2 same on start up.
I dunno whats the cause of this?

I just uncheck the other one now.
Its running fine now. Not sure of this yet......
This issue start only after that update.