pc is not resign recognizing keyboard or mouse and not booting

Nov 3, 2018
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Hi my pc is not going to windows 10 and it beeps at start all that started because of the win update i restarted my pc at the update and i cleaned my pc and the psu after that it doesnt detect my keyboard or mouse i cleaned the motherboard win some rubbing alcohol now what should i do ? Please help me to solve this issue