hello everyone 
i have 2 problem
1. vaio Function keys not working
2. Vaio control Center options missing ( backlit keyboard )
no option to turn it off
what should I do??
i try to reinstall
.Setting Utility Series
.Sony Firmware Extension Parser Device
.Sony® Shared Library
.VAIO® Event Service
still same proplem no changes 
my vaio is sony f series (vpcf215fx ) windows 7
plz help