Hi, I checked the amount of RAM in my PC today. I have 8GB but tin brakets beside it, it says 6.86 GB Usable. I have checked the amount of RAM several times and I never say this issue. It just happened today. Does anyone know how to make windows use all 8GBs as I have Windows 7 64-bit? I really hope somebody helps me as I edit 2K video, and I need every last KB of RAM I can get.