My computer won't recognize any usb i connect to it?

Please help me, Not an usb is working, not the scanner, camera, charger, nothing? how can i get my computer to recognize them?

Answer:
Are the USB Controller drivers installed and updated?
pc doctor and check your drives.
i would sugest waiting for a few days until it cools down at least thats what i did
Firstly are you trying to use usb connections at the front of the computer or at the rear, not all front usb ports work unless you connect them with a cable.
Secondly you could check device manager (control panel / performance & maintenance / system / hardware / device manager look down the bottom of the list and check usb is ok (no question marks)
If this is a new computer check that the usb is turned on in your bios.

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