When I run task manager, my computer's physical memory is typically in the 25-30% range when I'm not running any programs (outside of the ones I have running in the background all the time, which are included in the 25-30% range)
Anyways, over the past week, my computer has been starting to get slow & when I hit ctrl+alt+del and run task manager to see if anything obvious is causing the slowdown. I'll see that the physical memory is normally 50-75% and that Firefox is the most resource-intensive thing I have going and so I'll close that but the physical memory will still be abnormally high (like 40+%) even though I'll have nothing running except the basic stuff that like I said above only takes 25-30% of the memory. Typically if I'm just using the laptop to surf the web (I always use Firefox), then the Phys Mem is 40-45%
I ran an MBAM hyperscan last night & it found nothing. Today, I DLed & installed Windows updates (including a restart after it suggested it) and then ran a full MBAM scan of my laptop & it still found nothing
Here's a screenshot of my current task manager to show you what I'm referring to when I say Physical Memory since I don't know if it has a more specific name:
Also, it says there are 73 processes running, but I'm not running near as many processes as that. I'm sure there are background processes running on their own that are counted toward that total, but I don't recall seeing that high of a number there in previous times. Also, when the laptop is going slow, the CPU Usage will be anywhere from 10-40% and when I sort task manager by CPU, everything listed says 00
Even now, the computer is still a bit slow, in particular Firefox and anything involving Explorer (opening files, deleting files, etc)
Any ideas on what could potentially be the issue? Computer getting old or is there something hidden on here causing the headaches?
The laptop is a Dell XPS (L401X I believe) & runs on Win 7 Home