I bought a new Dell about three weeks ago, which came with Vista home premium, 64bit, SP1. It has a 700 gig hard drive. I have maybe 45 gigs worth of anything on here, and it says I only have 553 free gigs. Every so often it drops a gig or so, and when I boot it up in the morning it's lost anywhere from 5-8.
I had my computer reformatted and it still isn't doing anything to fix it. Why is this happening, should I be worried, how can I fix it?