Hyperthreading can be disabled through the OS, and renabled subsequently by reversing the change outlined in the following proceedure. Start > type "msconfig" > Press "enter" Go to "Boot" tab Click "Advanced Options" Check "Number of processors" and set the value to 4. Next time you restart your machine, windows will only recognize 4 cores. These 4 cores will be the physical ones, instead of 2 physical cores with 2 threads each. Therefore you will have the same experience as if you disabled hyperthreading from BIOS. Found this on the Lenova Community page hope it helps.