UPDATE: Good news! So after inspecting my pc, I remember my HDD's SATA port doesn't pin the SATA plug in, so sometimes it gets a little loose, however it wasn't the port's fault, the SATA cable was faulty, as I had a 3rd SATA cable (my 1st being used by my SSD) and tried plugging that in and it works! My cpu is still a bit spikey but maybe the thermal paste just has to settle in.
Hey all.
I recently have been having bad packet loss problems and did so many steps to try to fix it that my last resort was dusting my pc (because of a small chance that dust was in my ethernet port affecting it) and it definitely needed a cleaning. I made sure to take care of my pc while dusting it, grounding myself, spraying with compressed air at a safe distance. One thing I tried doing was rearranging my gpu from the lower pci-e slot to the upper one to get more air flow, but to do that I had to move my HDD (secondary drive, SSD being my primary with windows 10 on it) to a different slot, and I kind of had to pull it out hard but obviously made sure not to damage it), and for some reason using my other pci-e slot my windows resolution was all whack so I moved it back and it was fine. To add I also reapplied thermal paste to my cpu but I've done this several times so I'm 99% sure I didn't mess up anywhere. I stopped using my pc for 2-3 hours (had to do something else) and when I started using it again it felt slower, especially on the cpu side, it seems to be spiking or hanging closer to 100% more often and my mouse cursor lags a lot while it's under a lot of load. Now I'm having serious problems. My windows takes about 30 seconds to 2 minutes longer to load from being turned off, my windows explorer and sometimes windows itself crashes, and most annoyingly, my Steam is not responding (or when it does it works for 2 seconds then crashes). My HDD drive seems to be running a lot slower when opening a lot of folders. I literally cannot open video games installed on my D; drive because they just say "not responding" and even task manager sometimes fails to work. I have no idea what is happening and I'm 95% sure I didn't harm the computer when dusting it. Please help, thanks so much.

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