dell vatro 15 1558 bought on nov 2015 flicker once in 30 minutes for microsecond. how to fix

Kalyana

Estimable
Jan 7, 2016
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dell vastro 15 1558 flicker for a microsecond and no change in function. of windows. I bought it as dos /ubutu and formatted to win 8 with genuine cd, will this have any harm on laptop or can it be fixed.