Mouse and Keyboard Problems on XP Box

Hello,
I just got a new Computer (Vistaa) and am trying to set up my old machine (XP) for my grandaughter.
My wife sold wireless keyboard/mouse setup at garrage sale and now XP comes up with user menu, but won't react to any USB Mouse or Keyboard.

I think I need to turn off the wirless mouse setup, but can't get in to do it.

Can someone tell me how to get this done in the CMOS.


Gabe