Just built a brand new pc. First 2 days was perfect, 200 fps in games like csgo.. league... ect. Next day my fps randomly went to like 15 in game. Game freezes when I tab out and it just turned to crap. I really didn't install anything at all sense then besides flux so my eyes don't hurt at night.. I have 0 idea what happened. Under task manager it says my disk is 100% right now and it will randomly change, even will go super low randomly. My cpu does the same thing. Ive seen it hit 100 and then go to 3 randomly. I don't have a lot installed at all. At first I was paranoid that I didn't put thermal paste on my cpu (which I didnt because it said it already had thermal paste) so I took off my cooler to check and I did have thermal paste, obviously I messed it up so I removed and re added some manually. I really don't know what to do at this point.