This will always be the case until you change hard drive to an SSD. There is no fix. [URL]    
Hello there. I have been having this issue for over a year now. I got my laptop 2 or so years ago and it worked great up until March of last year. It started booting up with 100 percent disk usage and sitting at 100. I originally bought this laptop for gaming and have only used it to game. I did not use it much at all, so it is still fairly new. (Maybe 30 or so hours of gaming on it). Otherwise I used my desktop. I tried multiple things last year to fix it, and eventually got fed up and left it be. Now I need the laptop to replace another computer, so I need it working. I watched official Dell support videos on this issue, and nothing in the video helped me. I disabled SuperFetch, Windows Search, etc. I did a hard drive scan with support assist. I finally decided to reset the computer to factory settings and removing all my files. The issue is still there. Right now the disk usage is sitting at 100% while I am just typing this up. No other programs are open or installed since I did the factory reset. I again disabled SuperFetch and Windows Search, still not helping at all. I have screenshots of my System info and my resource monitor. Any help would be appreciated.[IMAGE][IMAGE][IMAGE][IMAGE][IMAGE]
100 Percent Disk Usage on Inspirion Laptop