Task Manager and MSBoot both show less CPU cores than I actually have.

[Galgan4170]

Hello,I have a Intel Core i5-8400 CPU installed in my PC, and I never really had any problems with it. Recently I've been doing a lot of CPU heavy tasks, and decided to check whether I can gain some performance here and there. While I was doing that, I realised that the number of cores Task Manager was showing was 4, yet my CPU has 6. For a second I thought that I forgot to set it to 6 in MSBoot. When I launched MSBoot, I saw that the maximum number of cores I can select was 4. I knew that something was not right, so I googled a little bit, and none of the "fixes" I found did anything. I tried

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