I have a relatively new computer. Bought it last fall. It has windows 8. Recently it has been running very slow. Web pages run and load slow. Sometimes the cursor, moves slower than the mouse, making it continue moving after i quit adjusting it. I opened task manager and noticed that the Disk Space is 99% full, but I dont really see anything that looks like it should be full? I dont know if there is a virus or some other problem? I am not terribly tech savvy, but I know enough to follow directions that I am given, if they are specific enough. Thank you for any help or suggestions you can give.