upgraded xp home to xp pro "doesnt recognize usb anymore"

[euroguy 0]

I upgraded winxp home to pro and windows doesnt recognize any usb device anymore. Can someone help me please?

 

[Brian Frank 0]

What USB device? Have you tried reinstalling the driver for the USB root hub(s)? If you have USB 2.0 ports, you'll need to have SP1 installed for it to work.