Do you happen to be using alot of your Hard Drive? Of course I don't see how you could use even over 100gb lol Thats alot.But if you have.. It could be that.. See if you can get rid of some of the stuff you don't need.. That could help out alot if the space is the problem... Other than that.. Sounds like a powerful computer lol I don't see why it would be soo slow.. Hope this helps, and have a nice day!