My system has been running slower and I hear frequent disk activity, sometimes for many minutes at a time. I have not had a BSOD but twice, once yesterday and once today, my screen went black. When I moved the mouse to see if I could get it back, I could see the cursor, but the screen would not come back. The cursor would move slowly as well. I had to do a hard boot both times. I have Malwarebytes installed and I have run a scan and it shows no infection. I also have Spybot S&D installed. I've tried looking on task manager and usually it is superfetch that is consuming resources. Also, I don't know if this is normal but opening one browser window with Microsoft Edge uses about 310 mb of memory. I'm not sure where to go from here.