usb unknown not found tried 4 diffrent laptops no usb found

[bigglou461]

like the tittle says i tried 4 diffrent laptops and 2 diffrent usb wires tried installing drivers manually and still cannot find drivers i tried uninstalling it over and over .... also i think its my kpro connection because i tried it on my friends car and it doesnt find drivers but his lap top works fine on his kpro im thinking its somthing with the usb connection

[Spunkster]

What is the serial number of the K-Pro board?