Hey, so I've been having this problem with my memory for a while. I can close every running application and i'll still be at about 40% memory usage. I have scanned with Malwarebytes and avast and there are no viruses on my computer. I have 8 gigabytes of DDR4 ram and I'm very confused as to why this has been happening. Should I get more ram or is there something wrong with my PC?