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Task manager and CPU-Z show that my Intel Core i3-4150 only has one core and two threads. When it should be two and four. The only program I have used that might have impacted this is VirtualBox (I have restarted the PC since using it).

What are some of the possible solutions for fixing this?

CPU-Z Screenshot

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  • Would you mind extending your question by a screenshot of CPU-Z? This will likely help others to answer your question.
    – dirdi
    Commented Oct 21, 2019 at 20:18
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    Thanks, just added an image of the CPU display, not really sure what's relevant.
    – Maurie
    Commented Oct 21, 2019 at 20:24
  • Here is Intel's product page for the mentioned CPU: ark.intel.com/content/www/us/en/ark/products/77486/…
    – dirdi
    Commented Oct 21, 2019 at 20:29
  • If you go to the CPU tab of the Resource Monitor, do you see CPU 2 and 3 in the right pane?
    – Jason
    Commented Oct 21, 2019 at 20:32
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    Neat problem. Update the BIOS for your motherboard. Also check if they have a CPU support list.
    – Jason
    Commented Oct 21, 2019 at 20:41

2 Answers 2

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Newer Intel CPU's support Core Parking, which effectively stops some cores to safe energy if they are not needed. Try to start up a few more programs and observe if the other Core gets activated. If this does not help, try to set Window's Power Plan Settings to High Performance. This should also disable the parking.

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Update: After running the bios it seems to have automatically fixed it. Didn't even need to flash the motherboard.Thanks for the help.

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