Everyone knows OS and software, browsers, etc all use way more RAM than they used to, and arguably more than they rightfully should. Bloatware, etc.
I saw something recently that alleged MS puts a lot of shit into PCs that say they are doing one thing but are really doing another.
It would be wild if they are basically using the PCs of the world to do something like crunch numbers, mine bitcoin, etc. Oh, hey, this guy has 12 gigs of ram and is only "using" 4, that's 8 for us to sap.
This is correct, open up Windows task manager, add the CPU time column and sort by CPU time, look at the processes on the top, most of them are background crap, and that is just the stuff that doesn't end the process after days.
NGEN and CompatTelRunner totally spin up the fans (NGEN especially if you are a .net developer). CompatTelRunner is literally Microsoft running a benchmark on your CPU before and after every Windows Update. NGEN is just a poorly optimized thing that searches for every single .NET executable on your computer and runs an optimized AOT compile on it, go into task scheduler and disable that crap.