Windows 10: Why is my PC getting random FPS Drops/Stutters and having robotic audio sounds.

I've asked a similar question about this issue on here before about a month ago, and after 2 weeks of going back and forth with a really helpful person i finally found a fix to my issue, or so it thought it would fix it. The issue fixed for a about a month but yesterday the same thing started happening again but this time when my PC FPS drops to 5 frames/Stutters i can also here this weird and obnoxious robitc noise.To give a little info on how i fixed the issue the first time, all i did was unplugged everything from my PSU, dusted out everything, plugged everything back it, put the PSU bac

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Sudden FPS drop/Stutter

Since 2 days ago, I just turned on my Computer, and it starting having issues while I was playing Witcher 3 (starts with decent fpsm and then very low fps, dropping to 35, then 20, and stopping at 12 or so, in a matter of seconds, in a matter of 1min of starting the game), also stuttering without any high demanding programs, randomly. I was playing at 45-60 fps, without any stutters or sudden fps drop. Have tried other games the issue persists. Even setup everything to low settings.
I have ran several tests with several tools, all seems normal, no sudden memory spikes, or temperature raising out of the ordinary, nothing that would indicate such an fps drop or stuttering.

MSI Afterburner

I also did the reset option on Windows10, completly cleaned out all my personal info from the windows partition.
So at this point, I am not sure if it is a software issue or a hardware issue.
Any suggestions are greatly appreciated.

Edit: I kept doing some tests to find out the issue. And this happened before and I was able to replicate it. Same thing happened as before, till I set it up to fullscreen, Alt+Tab from the game and then back to the game, FPS went up to 50 again, stable and good, dropped after a couple of seconds. After a bit it went to 2-5 fps, and I had to shutdown the game, because even the sound was getting messed up.

MSI Afterburner 2

In this image those ups and downs in the GPU usage are when the fps dropped really hard and the sound got messed up.

 

My pc gets fps drops that drop to 3 fps and my audio sounds like static, this only happens when I start playing games

When I start to play games my pc its fine for maybe 40 - 60 minutes, then I start to get random fps drops that drop to like 3 fps then my audio sounds like static, this only last for a few seconds but it starts to do it every 4 minutes or so.

 

My pc gets fps drops that drop to 3 fps and my audio sounds like static, this only happens when I start playing games

When I start to play games my pc its fine for maybe 40 - 60 minutes, then I start to get random fps drops that drop to like 3 fps then my audio sounds like static, this only last for a few seconds but it starts to do it every 4 minutes or so.