Do you install anything on that WD Blue? Game or program? Probably used as storage only?
How full is your Intel 760p?. 128GB is very small if this is used as your OS drive. It is 37.5GB free.
How long have you been running with only 1x8GB RAM stick? I'm asking because if you knew how many fps you're losing because you're running in single channel instead of dual channel in some games. Can be up to 30% on some titles. When you buy RAM you buy the amount you want in a 2 sticks kit and you use 2 slots on the motherboard to get the full 128bit dual memory channel. Running it with only 1 stick is cutting that in half and is the reason why you have a 36.7% on your memory.
Scan your computer for virus malware. Give me your temperatures at IDLE and LOAD for your CPU and GPU. Any example of why you think your system is going slower than normal?
The 128gb is with just windows on it and probably some other stuff that isnt meant to be on there.
The WD Blue is just random files etc
I've recently started using the 1x8gb ram stick because while upgrading, my other ram stick wasn't a DDR4 which wasn't compatible for my motherboard. I'm buying 2x8GB 3600MHz during the week so hopefully it will be fine.
Do you have any recommended softwares to scan for virus malware?
Where do I go to give you my temperatures at IDLE and LOAD?
Well when I play this game Metro Exodus, I get pretty bad fps drops after I alt tab and go back in. Like If I wanted the game to go smooth, I can't alt tab out or else it will stuff up. Not sure how that works.