How to disable hyperthreading in the bios

Written by vladimir khavkine
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How to disable hyperthreading in the bios
The Hyper-Threading technology allows the processor to run two threads at once. (Comstock/Comstock/Getty Images)

Hyper-Threading is a technology introduced by Intel with its Pentium 4 series of processors, and it is designed to optimise the usage of the processor's resources, allowing two threads to run simultaneously on a single processor core. The Hyper-Threading technology simulates the presence of a second physical core for every existing core of a processor. The technology requires a Hyper-Threading-enabled processor and a compatible motherboard, and it can be enabled or disabled via the system BIOS.

Skill level:
Easy

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Instructions

  1. 1

    Turn on the PC and during the POST screen, press the key assigned to access the BIOS, commonly "Delete" or "F2", depending on the model of your motherboard.

  2. 2

    Locate the Hyper-Threading option in the system BIOS. Typically, this is located on the main tab, but the location can differ, depending on the motherboard and BIOS.

  3. 3

    Select the Hyper-Threading option, press "Enter" to bring up the settings tab and select "Disabled".

  4. 4

    Exit the BIOS saving changes and wait for your PC to reboot. Hyper-Threading should be disabled.

Tips and warnings

  • To take full advantage of the Hyper-Technology, enable it before installing an operating system.
  • Install the Intel INF Utility before installing any drivers for Windows to correctly detect and use the Hyper-Threading technology.
  • Use the latest drivers available to ensure maximum compatibility and optimisation.
  • If the Hyper-Threading option is displayed in BIOS but its status cannot be changed, the installed processor does not support Hyper-Threading.

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