hello Bunto, welcome to tsf.
the drivers for USB 2.0 are built into windows xp (must have at least service pack 1 installed).
to verify the driver is installed: right click my computer select device manager then double click universal serial bus controllers and verify one of the listed items has the words 'enhanced host'.
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also, to check the bios settings reboot and press Del key then select advanced menu and key down to usb configuration, verify the settings are same as shown below.