This problems occurred after cleaning your pc hardware.
Same issue occurred 2 time with my pc.First time i install new window but same problem after installing my window. Then i remove my rams and plug in again then start my pc. My pc works normally but installing new window is worth me because all my games saved in c drive i lost them. But when i clean my pc 2nd time same issue occurred with me then again i removed my rams and plug in again and problem will gone.
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