Is there a way to disable Hyperthreading? Many tasks are not properly multi-threaded and many applications, even while being multi-threaded, still have some tasks within them that don't take advantage of multiple cores. That being said, with Hyperthreading, your physicals cores are split to perform 2 tasks, so if an application is only using one thread, you're actually using half the potential of that core, making things slower. I've only experienced benefits when using hyperthreading for 3D rendering or video processing, otherwise I turn off Hyperthreading on all my machines, and even then, the benefits max out at about 15% speed improvement. Since I'm not rendering anytime soon on my SP3, is there a way to disable Hyperthreading on the SP3?