Hi, I'm running Windows 8 bootcamp on macbook retina 15, when I start up Windows 8, I have about 1.2 gigs free space remaining.. but this amount fluctuates on every startup.. sometimes its 500mb, than even 3 mb, than 0 space remaining.. than jumps back to 1 gig on next startup. Whats going on with this free space? I checked my updates and it doesn't seem like any new updates are being installed so where is this space going? Anyway to fix it ?