Gaming Pc Performance slow (NEED HELP)

I have a desktop with an i5, gtx 1080, 16gb of ddr4, all games running on an ssd and am struggling to run games how I think I should. I have had this pc for a year or so without any issues, recently games aren't running well. The wakeup call was modern Warfare. I updated my drivers after struggling to even play. Adjusted my settings according to guides "best settings for performance" Still, it would randomly throttle and just not run smooth overall. I am an avid cs player. I was playing nuke on medium settings with AA off, running 80-100 fps. I should be able to peg it to 144 to maximize my monitor shouldn't I? On modern warfare my CPU usage was like 99%. I closed everything I could to lower it with minimal results. I ran a full scan on windows defender yielding no result for a virus but I feel I must have one. Any thoughts? I just wanna maximize my games and play them how I should be able to.

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As games pushed the limits
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My speccy
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I'm going to not read it all.

The ST2000VX008 has the usual too high values in 01 and 07.

When the client complains of performance issues and you find this you get that drive out before working much else.

That hardware issue aside, it is entirely possible to push the i5 to the limit even with the nice 1080 GPU and only the 1080p 144Hz monitor. This is the nature of gaming where you have to either keep upgrading or pull back on the settings.

Having that HDD in there only muddies the issues.

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Oh wait, WHY IS THAT!
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Do you know why my cpu would be reporting 2 cores/how to fix it? Also, is there a way to fix the problem the hard drive is causing or does it just need replaced with more ssd room?

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The HDD is removed.

The HDD issue is one of the classics. You never attach those with that issue to a PC you want to perform well.

As to the CPU I can't guess why your Windows is doing that. Try setting the number of CPUs to 4 or Auto. Here's a link about that. THAT CPU CORE COUNT IS A FINE REASON FOR 90% of your complaint. Maybe more.

Read to find the usual places this setting is.

Yes, there were a few BIOS that had such but I can't know what your PC BIOS offers. It's a bit rare to control that there but if the link doesn't help, check your BIOS screens.

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Maybe because it has two channels ....

....with 2 cores each?

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