Question How to enable all CPU cores

May 5, 2020
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I have this problem i don't know how to fix. I have a AMD Athlon x4 860k Quad core processor and it only shows 1 core and 2 logical cores. In device manager i can see all four cores. And i even tried msconfig, boot and advanced options there i could only select 1 or 2. I checked UEFI and there i could see all four cores as well but i dont know if they are enabled. Please let me know how to fix. Thanks.
 

boju

Titan
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Did you upgrade to this cpu or using an existing Windows install from a system with less cores?

When you went into msconfig, was the number of processors box already checked? If so, uncheck it and reboot.
 

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