Hi Aziz320,
Welcome to Sony Community!
We apologize for the inconvenience. Was there any change that happened prior to the issue? You may perform a power reset on the laptop followed by a BIOS reset. Observe the performance of the laptop after these steps.
We kindly recommend visiting our Sony Global Web site for information on contacting the Sony Support Center in your region at http://www.sony.net/SonyInfo/Support/
Regards,
Jen
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