Hi Gauravsharma,
Welcome to Sony Community!
We're sorry to hear about the issue on your laptop. If this happened after you upgrade the unit to Windows 10 , then we suggest that you go back to your previous operating system. This unit has no driver support for Windows 10 operating system thus upgrading it will result to limitations on its functions.
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,
Jen
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