They must have had a working k and m to install so ask them what works.
I was given a custom built computer with XP Pro. It has no plugs for keyboard or mouse only 3 usb plugs in back and 2 in front. I have tried plugging in a USB keyboard and a USB Mouse in all but at boot in Cmos it says "No Keyboard detected" Then "No Mouse detected". It then proceeds to the windows sign on screen wanting a password. I know the password but unable to enter or by pass the screen because Keyboard and mouse are not recognized. Any ideas?