i have a dell vostro 1540 laptop windows 7 home edition.
for the first time it turned off after 2 3 hours of working..this happened 4 or 5 times again...i thought it was virus and wanted to re-install windows..but i couldn't because the time of turning off had been shorter that couldn't even start windows...i searched for this problem and found that i should reset my hard...when i did that it have been fixed for a day..but after that the problem came back...i didn't know if it is virus or software problem or hardware problem ..i don't know .....
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It could be that the hardware is overheating. Do you hear that fans moving properly? can you open the computer to verify that you dont have a fan partially spinning or some other obstruction? It could also be that the heat sink over the CPU is full of dust, not …
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