How to fix mouse and keyboard not working

How to fix mouse and keyboard not working There are many possible reasons that it not works. this problem occurs when you plug in device like mobile or router, it takes energy from motherboard, so that other devices doesn't works. after some time the usb plug won't works. this problem can't be fixed by manually. There usb plug get short(courpt) by using beyond limits energy. It can be fixed by the man who did computer hardware course, or he is the computer repairer I want to tell you that do not use your all the plugs and do not add some mobile or router thing that takes energy fro your computer to charge itself.