Hi I had to wipe a computer because there was a problem with it and I have reinstalled all software and drivers on it but for some reason the USB Ports dont work. (front and back ports) it detects something has been connected but just says failed to load

What are you trying to connect?

Some devices such as USB card readers, external hard drives etc that don't have their own power supply require power from the PC.

Not all PC's have enough power for those devices. When that happens, you get the error that you just described. Usually it says:

"USB device malfunctioned" or "USB device not recognised".

Of course if you have an adequate power supply then the issue may be the USB ports themselves (as opposed to the devices you are plugging into the USB ports).

If you can give information on the model of your PC and the wattage of the power supply then we can help narrow it down.

Also you can test it by connecting something which has its own external power supply such as a digital camera or something small like an SD card reader.