My usb ports quit working, does anyone know why?

my usb ports wont pick up my printer or anything else.it did up untill i plugged my mp3 player into it,very soon they dont work.HELP PLEASE!!!

Answer:
maybe its disabled, right click my computer and click muddle through, go to device leader and find the universal serial bus controllers hold a look at them if they are enabled, just right click it and click properties...
You ask, "Does anyone know . . . ?"

The answer to that put somebody through the mill, whether ANYONE KNOWS, is certainly near must be someone out there who know.

But is that what you really were asking going on for?

Maybe you wished to determine HOW MANY population know?

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