For too many reasons. No machine details so try the desktop's rear USB ports. Front ports on desktops do this a lot and I've learned to not bother fixing front panel ports.
My USB ports recognize my mouse plugin but will not recognize anything else. My camera, my back up hard drive etc. I don't understand how it is recognizing the mouse but nothing else. Please help me with this because backing up my computer to a hard drive is very important thing

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