I have a problem with the Universal Serial Bus Contollers (ports) none of them are working . Can anyone help in fixing these. I have been into the devise manager and they have all exclaimation marks by the contollers there are 5 of them. I have unistalled the drivers and reinstalled them but the message comes up saying windows cannot load the devise drivers for this hardwarse as the driver might be missing or corrupted.
Thanks Theemcee

How many of the ports are you using? You may be overloading the bus if you have too many devices plugged in.

what is the USB host controller of your motherboard intel, via or what?
in your device manager what other items got exclamation marks only usb or still got other items?