The point of updating hardware drivers is to improve the performance of that particular hardware. Unfortunately, in some cases, specific driver versions can be a detrimental problem. This leads us to Nvidia's latest dilemma, their latest driver, version 531.18, has a severe bug that causes high CPU usage after users have exited games. However, Nvidia has admitted that there is a problem; there will undoubtedly be an issued hotfix that will come in the next driver update.