Following on from Degger's story from yesterday the AMD Athlon XP Processor driver update that is showing up on Microsoft Windows Update website but a few peeps had problems download it?

Could this be the driver your looking for: AMD K7 processor driver 5.1.2600.28 Windows XP support for the model 8 processors (Thoroughbred).

Download AMD K7 processor driver 5.1.2600.28 Windows XP