Hi PhiMin,
Thank you for visiting Sony Community!
If you are not confident in doing all of these, we recommend contacting or visiting the nearest Sony Authorized Service Center in your area. They have the knowledge and experience with Vaio computers and they'll be able to help you further with your concern.
For further assistance, we kindly recommend visiting our Sony Global Website for information on contacting the Sony Support Center in your region at http://www.sony.net/SonyInfo/Support/. Due to proximity, they are in a better position to respond to your questions or concerns.
Regards,
Vincent
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