Bloototh peripheral is missing, means either:
1. Wrong driver or wrong setup file
2. Bluetooth device (or a part of it) is disconnected
This is the same link as above where I see the bluetooth driver for your system:
http://www.sony-asia.com/support/dow...subpage=detail
Bluetooth driver 6.2.0.9600.0908210
1. Download the file to a temporary or download directory (Please note this directory for reference later).
2. Go to the directory where the file was downloaded and double-click EP0000206086.exe.
3. Follow the instructions displayed in the installation wizard.
4. After installation is completed, please restart the computer.
VAIO™ Notebook - VGN-CS26M
http://www.sony-asia.com/support/dow...subpage=detail