Hi Kun,
Thank you for considering Sony Community!
Make sure you are downloading the right drivers and software based on the version of Windows operating system you installed like 32bit or 64bit, Windows 7 Starter, Home Premium, etc. VPCSB38GG is a non-U.S. model and we do not have the drivers and software for this unit.
For further assistance regarding your concern, please contact the Sony offices/Sony representative offices nearest to your place of residence in Asia Pacific region http://www.sony-asia.com/countryselector.html?hpid=countryselector:AsiaPacific. Due to proximity, they are in a better position to respond to your questions or concerns.
Regards,
Vincent
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