keys sticking

Hello. Lately I have been having troubles with my pre-built gaming laptop (below I will provide a link to the Amazon store page so people can see the specific model and some specs)...

I have a corsair carbide 240 case and the power button lights up and so does the rest of the pc. But the usb 3.0 ports and audio jacks do not work! My motherboard is a z170m plus. I have tried using device manager etc and my pc seems to not notice a problem with them. But they seem dead as they...