I use PC Check & Tuning For a few weeks and then to keep mainly to my drivers up to date. Each new update graphics card drivers have been found again and already after the first driver update various 3D games ran noticeably faster. I suppose at least that it was up to the driver update - I also have to optimize the startup and services. It seems to me also that the PC will start faster. The program does exactly what the advertising promises, namely the PC faster.