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Windows 7: switching hyperthreading on & off from the OS ?

09 Sep 2017   #1
sikelo

Windows 7 Ultimate x64
 
 
switching hyperthreading on & off from the OS ?

(not from the bios!) how can i to switch HT off and on again from Windows operating systems? (intel uttiels ,tools)


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09 Sep 2017   #2
BrightBlessings

Win7 Pro-64 Bit
 
 

Nope
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09 Sep 2017   #3
LMiller7

Windows 7 Pro 64 bit
 
 

For a number of technical reasons this is not possible.

I think it very likely that the CPU would only permit a change in Hyperthreading state in real mode, before Windows starts.

Changing Hyperthreading state would change the number of cores seen by the thread scheduler and raise a number of other issues as well. Windows 7 does not support this while it is running. Windows 7 has a boot option to change the number of cores but this requires a reboot, and it does not effect Hyperthreading.

Hyperthreading can only be changed in the BIOS.
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09 Sep 2017   #4
RoasterMen

Windows 7 Home Premium 64-BIT
 
 

In a simple answer, No.
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 switching hyperthreading on & off from the OS ?




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