Hello! So I've been having an issue for the past couple of months where every now and then, my PC will drop from a solid 60 to 15-5FPS. I've tried everything i can think of to fix this. Uninstalling any programs I've installed since it started, Running virus scans, Defraggling, Updating drivers, Reducing game quality, only keeping one app open at a time. Etc.

When the lag happens, my GPU usage drops from 90~ to 20 which i found surprising. my CPU usage and GPU usage remains relatively low and the temperature of all my hardware is fine. So I'm completely stumped. It happens on every game (Even just watching youtube once or twice it's happened) and it's driving me crazy! I havent been able to stream in ages and i really want to get back to it! Any help is appriciated <3

My specs are:
NVIDIA GeForce GTX 1050
AMD FX-8350 Eight-Core Processor
16 GB ram
3 Hardrives all of which have more than 200GB free (one for my OS, one for school stuff and one for Gaming.)