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This laptop includes a 15.6 inch screen display, 500GB hard drive, and an Intel Core i3 processor. Released in February 2012, it is identified by model number NP300E5A-A02UB.

laptop switches off and restarts

my laptop shows samsung logo for few seconds then switches off and automatically restarts by its self and does the same thing over and over again

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When did this first occur? Do you get any messages?

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Do you see the Windows boot screen before it restarts?

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no i dont see the windows boot screen, laptop only comes on for five second and display "SAMSUNG" then switches off and restarts.

this started yesterday, i recieved no message, went into bios to change the boot sequence to boot from cd rom first then that started

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it wont allow me to go into bios coz of the number of seconds it stays on

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It is trying to boot from the CD when it is not bootable. Try changing the boot sequence and see if this works. Hope that works!

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